@book{75249,
	author = {Calderón Alcaraz, Esteban. and Lorenzana Salazar, José Gonzalo.},
	title = {Manual de poda de árboles frutales de hoja caduca},
	publisher = {Colegio de Postgraduados,},
	year = {1983.},
	address = {Chapingo, Méx. :}
}