A field guide to the butterflies of North America, east of the Great Plains /
Alexander B Klots; Illustrated with color paintings of 247 species by Marjorie Statham, and 232 photos. by Florence Longworth.
- Boston : Houghton Mifflin, c1979.
- xvi, 349 p. : illus. (part col.) ; 19 cm.
- The Peterson field guide series .
- Peterson field guide series. .