Field instructions for farmers' cooperative demonstration work
Contributors: Knapp, S. A.
Edition: Second revision.
Series: B.P.I -- 523; Bulletin (United States. Bureau of Plant Industry) -- no. 523.
Publisher: United States Department of Agriculture, Bureau of Plant Industry, Farmers' Cooperative Demonstration Work
Published: 1909
Place of publication: Washington, D.C
Language: eng
Subjects: Agriculture
Notes: "Second revision, issued Nov. 10, 1909."

"No. "A"--69."

"11709-09."

"October 12, 1909."--Page 8.

N.t.-p.