@book{53447,
	author = {Wellhausen, Edwin John. and Hernández Xolocotzi, Efraím.},
	title = {Razas de maíz en México :},
	publisher = {Oficina de Estudios Especiales,},
	year = {1951.},
	series = {O.E.E., foll. Tec. 5},
	address = {México, D.F. :},
	note = {c.1,3-6 en fotocopia},
	url = {http://10.13.5.2/tesis/x54510.pdf}
}