@book{79090,
	author = {Simposium de Ganadería Tropical and INIFAP. México. Campo Agrícola Experimental La Posta.},
	title = {Porcicultura tropical},
	publisher = {INIFAP. Campo Experimental La Posta,},
	year = {1993.},
	series = {Publicación especial},
	address = {Paso del Toro, Ver. :}
}