TY  - BOOK
AU  - Field,William Dewitt,1914-
AU  - Dos Passos,Cyril Franklin
AU  - Masters,John H
TI  - A bibliography of the catalogs, lists, faunal and other papers on the butterflies of North America north of Mexico arranged by state and province (Lepidoptera: Rhopalocera)
PY  - 1974///
CY  - Washington
PB  - Smithsonian Institution Press
KW  - Butterflies
KW  - United States
KW  - Bibliography
KW  - Canada
ER  -