@book{52260,
	author = {Ponce Hernández, Raúl. and Cuanalo de la Cerda, Heriberto E.},
	title = {Agrohabitat y agroecosistemas},
	publisher = {Colegio de Postgraduados,},
	year = {1980},
	address = {Chapingo, Méx. :}
}