External parasite control
By: authors, James McKean, Jerry DeWitt ; reviewers, Merlin Dennis, Dean K. McBride.
Contributors: DeWitt, Jerry.; United States. Dept. of Agriculture. Office of Governmental and Public Affairs.
Series: Fact sheet, swine health -- AFS-3-8-4.; Fact sheet (United States. Dept. of Agriculture) -- AFS-3-8-4.
Publisher: U.S. Dept. of Agriculture, Office of Governmental and Public Affairs
Published: 1981
Place of publication: [Washington, D.C.]
Language: eng
Subjects: Parasites.; Swine -- Diseases.
Notes: Caption title.

"Issued March 1981"--P. [4]