@book{7577,
	author = {Begon, Michael and Harper, John L., },
	title = {Ecología :},
	publisher = {Omega, },
	year = {c1999},
	address = {Barcelona, Esp. :},
	edition = {3 ed.},
	note = {Título original: Ecology: individuals, populations and communities},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/6712.pdf}
}