Increase clover seed yields with adequate pollination
By: [by Carl Johansen and Arthur H. Retan].
Series: Insect answers; Extension mimeo -- 3444.; Extension mimeo (Washington State University. Cooperative Extension) -- 3444.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1971
Place of publication: Pullman
Language: eng
Notes: Cover title.

"April 1971."

"E.M. 3444."