@book{34053,
	author = {Mendívil Portillo, Noé.},
	title = {Competencia por Acyrthosiphon pisum (Harris) (Homoptera: Aphididae) de Hippodamia convergens: Guerin-Meneville y Paranaemia vittigera (Mannerheim) Coleoptera: Coccinellidae},
	publisher = {El autor,},
	year = {1982},
	address = {Chapingo, Méx. :}
}