@book{60416,
	author = {Sánchez Cervón, Julio  and Zapata Zepeda, José Enrique},
	title = {Curso de geografía general},
	publisher = { : Trillas},
	year = {, 1998},
	address = {México},
	edition = {2a. edición},
	note = {Reimpresión: 2002, 2001}
}