System in the county extension office
By: [by Karl Knaus].
Contributors: United States. Dept. of Agriculture.
Series: Agriculture information bulletin -- no. 28
Publisher: U.S. Dept. of Agriculture
Published: 1951
Place of publication: Washington, D.C
Language: eng
Number of pages: 24
Subjects: Agricultural extension work -- United States.; County agricultural agents -- United States.
Notes: Cover title.