Perennial ryegrass seed crop management in northwest Washington.
Contributors: Brauen, Stanton E. 1932-
Series: Extension mimeo -- 3670.; Extension mimeo (Washington State University. Cooperative Extension Service) -- 3670.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1974
Place of publication: Pullman
Language: eng
Notes: Caption title.

"Prepared by Stan Brauen ... et al."--P. 7.

"May 1974."

"E.M. 3670."