economic comparison of manual and automatic detaching milking machines
By: by Gayle S. Willett, Bill F. Kelso, and Grady F. Williams.
Series: Extension mimeo -- 4105.; Extension mimeo (Washington State University. Cooperative Extension Service) -- 4105.
Publisher: Cooperative Extension Service, College of Agriculture, Washington State University
Published: 1976
Place of publication: Pullman
Language: eng
Number of pages: 21
Notes: Bibliography: p. i.