@book{1644,
	author = {López Ahumada, Beatriz.},
	title = {Dinámica poblacional de Brevicoryne brassicae (L.) (Homoptera: Aphididae) en brocoli en Chapingo, Méx.},
	publisher = {El autor,},
	year = {1990},
	address = {Montecillo, Méx. :},
	note = {42-168}
}