@book{103715,
	author = {Diaz Rodríguez, Santana and Silva Villalobos, Rogelio Daniel},
	title = {Geografía},
	publisher = {: Umbral Editoprial},
	year = {, 2017.},
	address = {México},
	edition = {2a ed.},
	note = {En la cubierta: "De acuerdo a los programas por competencias"}
}