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	41.	No cover image available 50 cosas sencillas para salvar a la tierra / The earth works group, traducción de Martha Tappan. by The earth works group Tappan, Martha [traductor] Edition: Primera edición, cuarta reimpresión. Material type: Text; Literary form: Not fiction ; Audience: General; Language: Spanish Original language: English Copyright date: México : Diana ; 1995 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 363.70525 T3743c 1995. Place hold Add to cart (remove)
	42.	Large-scale ecology and conservation biology : the 35th Symposium of the British Ecological Society with the Society for Conservation Biology, University of Southampton, 1993 / edited by: P. J. Edwards, R. M. May and N. R. Webb by Edwards, P. J [editor] May, Robert M. (Robert McCredie), 1936- [editor] Webb, N. R [editor] Edition: First Edition Material type: Text; Format: print ; Literary form: Not fiction Language: English Copyright date: Oxford : Blackwell Scientific Publications ; 1994 Other title: Large scale ecology and conservation biology. Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 577 E2667l 1994. Place hold Add to cart (remove)
	43.	Ecology and field biology / Robert Leo Smith. by Smith, Robert Leo, 1925- Edition: Second Edition Material type: Text; Format: print ; Literary form: Not fiction Language: English Copyright date: New York : Harper & Row ; 1974 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 577 S6583e 1974. Lists: BIOLOGIA. Place hold Add to cart (remove)
	44.	Living in the environment : a sourcebook for environmental education / K. M. Sytnik, L. S. Cherednichenko, V. G. Sakhaev, Yu. P. Lebedinsky, V. V. Voloshin, V. A. Kolybin. by Sytnik, K. M. (Konstantin Merkurʹevich) Cherednichenko, L. S [autor] Sakhaev, V. G [autor] Lebedinsky, Yu. P [autor] Voloshin, V. V [autor] Kolybin, V. A [autor] Edition: First Edition Material type: Text; Literary form: Not fiction ; Audience: General; Language: English Copyright date: Rusia : UNESCO, Naukova Dumka Publishers , 1985 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 577.071 S9959l 1985. Place hold Add to cart (remove)
	45.	Evaluación y control de la contaminación / Francisco Alberto Villegas Posada. by Villegas Posada, Francisco Alberto Edition: Primera edición. Material type: Text; Literary form: Not fiction ; Audience: General; Language: Spanish Copyright date: Bogotá : Universidad Nacional de Colombia, EUN ; 1995 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 333.714 V732e 1995. Place hold Add to cart (remove)
	46.	Phylogeny, ecology, and behavior : a research program in comparative biology / Daniel R. Brooks and Deborah A. McLennan by Brooks, Daniel R McLennan, Reborah A [author] Edition: First edition Material type: Text; Format: print ; Literary form: Not fiction Language: English Copyright date: Chicago : University of Chicago Press ; 1991 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 576.88 B8732p 1991. Place hold Add to cart (remove)
	47.	Community structure and the niche / Paul S. Giller. by Giller, Paul S Series: Outline Studies in Ecology Edition: First Edition. Material type: Text Language: English Copyright date: London : Chapman and Hall ; 1984 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 577 G476c 1984. Place hold Add to cart (remove)
	48.	Wilderness and the American mind / Roderick Nash [author]. by Nash, Roderick Edition: third Edition. Material type: Text Language: English Copyright date: New Haven : Yale University Press , 1967 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 973 N252t 1967. Place hold Add to cart (remove)
	49.	Conservation and the use of wildlife resources / M. Bolton by Bolton, M [editor] Series: Conservation biology series, 8 Edition: First edition Material type: Text; Format: print ; Literary form: Not fiction Language: English Copyright date: New York : Chapman & Hall , 1997 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 333.72 B6946c 1997. Place hold Add to cart (remove)
	50.	Ecology and evolution of communities / Martin L. Cody and Jared M. Diamond (editors). by Cody, Martin L [editor] Diamond, Jared M, 1937- [editor] Edition: First Edition. Material type: Text Language: English Copyright date: Cambridge, Mass. : Belknap Press of Harvard University Press , 1975 Availability: Items available for loan: Biblioteca Yachay Tech (1)Call number: 577.82 C671e 1975. Place hold Add to cart (remove)