@book{50461,
	author = {Villegas de Gante, Marina.},
	title = {Malezas de la Cuenca de México},
	publisher = {Instituto de Ecología,},
	year = {1979},
	series = {Publicación},
	address = {México, D.F. :},
	note = {c.6 sust. por Sutton, David V. Fundamentos de ecología c.1}
}