@book{52728,
	author = {Field, William D. and Dos Passos, Cyrial F.},
	title = {A bibliography of the catalogs, lists, faunal and other papaers on the butterflies of north America narth of Mexico arranged by state and province (Lepidoptera:Rhopalocera)},
	publisher = {Smithsonian Institution,},
	year = {1974},
	series = {Smithsonian contributions to zoology},
	address = {Washington :}
}