Status of the Oregon silverspot butterfly (Speyeria zerene hippolyta) in Washington
Subtitle: draft
By: Washington Department of Wildlife.
Contributors: Washington (State). Dept. of Wildlife.; Washington (State). Nongame Wildlife Program.
Publisher: The Department
Published: 1993
Place of publication: Olympia, Wash
Language: eng
Number of pages: 27
Subjects: Butterflies -- Washington (State); Endangered species -- Washington (State)
Other titles: Oregon silverspot butterfly.; Silverspot butterfly.
Notes: "March 1993."

"Literature cited" p. 19-21.