@book{163650,
	author = {Millán García, José Ausberto Daniel and Nava Urrutia, Mario Avelino},
	title = {Cultivo asociado de maíz para grano y leguminosas forrajeras  /},
	publisher = {El autor,},
	year = {1989},
	address = {Chapingo, Méx.  :}
}