Knapweeds of Washington
By: [Ben F. Roché, Jr., Gary L. Piper, Cindy Jo Talbott].
Contributors: Piper, Gary L.; Talbott, Cindy Jo.
Series: EB -- 1393.; Extension bulletin (Washington State University. Cooperative Extension) -- 1393.
Publisher: Cooperative Extension, College of Agriculture & Home Economics, Washington State University
Published: 1986
Place of publication: [Pullman?]
Language: eng
Number of pages: 41
Subjects: Knapweeds -- Washington (State); Botany -- Washington (State)
Notes: Cover title.

"November 1986"--P. 41.

Bibliography: p. 39-41.