@book{43568,
	author = {Fuentes Orozco, Alejandro.},
	title = {Naturaleza de la heterosis en la cruza intervarietal de Durango Gpo. 1 x México Gpo. 18 /},
	publisher = {El autor,},
	year = {1965},
	address = {Chapingo, Méx. :}
}