@book{5115,
	author = {Ramírez González, Alberto},
	title = {Ecología aplicada :},
	publisher = {Fundación Universidad de Bogotá Jorge Tadeo Lozano,},
	year = {1999.},
	series = {Colección Ecología},
	address = {Bogotá :},
	edition = {1a ed.}
}