@book{6318,
	author = {Espinoza López, Joel. and Estrada, Gonzalo.},
	title = {Estructura de praderas nativas tropicales a diferentes asignaciones de forraje (quinta fase)},
	publisher = {El autor,},
	year = {1992},
	address = {Chapingo, Méx. :},
	note = {61-214}
}