@book{55853,
	author = {Zambrano Díaz,Homero.},
	title = {Estudio agrológico detallado del ejido Guadalupe Garzarón, municipio de Concepción de Oro, Zac.},
	publisher = {El autor,},
	year = {1980},
	address = {Monterrey, N.L. :}
}