A field guide to eastern butterflies / Paul Opler ; illustrated by Vichai Malikul.

Author: Opler, Paul A.

Imprint:Boston : Houghton Mifflin, 1998.

Physical Descriptionxvii, 486 p. : ill. (chiefly col.) ; 19 cm.

Note:"Sponsored by the National Audubon Society, the National Wildlife Federation, and the Roger Tory Peterson Institute."

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