Field, William Dewitt, 1914- <br/><br/>
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) 
William D. Field, Cyril F. dos Passos, and John H. Masters 
 - Washington  Smithsonian Institution Press  1974 
 - 104 p. ; 26 cm. 
 - Smithsonian constributions to zoology  no. 157 .
<br/><br/><label>LCCN: </label>73-7549 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Butterflies--United States--Bibliography<br/>Butterflies--Canada--Bibliography