@book{70000,
	author = {Colmenares, Francisco.},
	title = {Petróleo y lucha de clases en México 1864 - 1982},
	publisher = {EL Caballito,},
	year = {1982},
	series = {Col. Fragua mexicana},
	address = {México, D. F. :},
	note = {D19-33}
}