@book{1421,
	author = {Tapia Velázquez, Juan Manuel. and Mendoza Palacios, Juan de Dios.},
	title = {Normales agroclimáticas del estado de Chiapas},
	publisher = {Los autores,},
	year = {1990},
	address = {Chapingo, Méx. :},
	note = {41-192}
}