@book{207344,
	author = {Essig, E. O. and Pomona College Journal of Entomology 4 (3)},
	title = {Aphididae of Sothern California X  /},
	note = {Sobretiro de: Pom. Coll. J. Ent. 4 (3): 759-797, 1912. Encuadernado con otros impresos similares}
}