@book{85859,
	author = {Sánchez Martínez, Gumaro. and Morales Cárdenas, Juana Angélica.},
	title = {Fertilización foliar en jitomate (Lycopersicon esculentum Mill.) en Salamanca, Guanajuato},
	publisher = {El autor,},
	year = {2002},
	address = {Chapingo, Méx. :}
}