Butterflies of British Columbia including western Alberta, southern Yukon, the Alaska Panhandle, Washington, northern Oregon, northern Idaho, northwestern Montana / [electronic resource] :
Crispin S. Guppy and Jon H. Shepard.
- Vancouver : UBC Press, 2001.
- 414 p. : ill. (chiefly col.), col. maps.
"A Royal British Columbia Museum book."
Includes bibliographical references and index.
Electronic reproduction. Palo Alto, Calif. : ebrary, 2009. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.