Electrically operated gates for livestock markets
By: [by Herman F. Mayes, James H. Obermeyer, and J. S. McKibben
Contributors: Obermeyer, James H.; McKibben, J. S.
Series: [U.S. Agricultural Research Service] ARS 52 [New series] 21; ARS 52 -- new ser., no. 21.
Publisher: Agricultural Research Service, U.S. Dept. of Agriculture
Place of publication: Washington]
Language: eng
Number of pages: 11
Subjects: Gates; Livestock; Marketing