Não informado. (2001). Service and regulatory announcements. U.S. Department of Agriculture, Bureau of Animal Industry.
Chicago-Zitierstil (17. Ausg.)Não informado. Service and Regulatory Announcements. Washington: U.S. Department of Agriculture, Bureau of Animal Industry, 2001.
MLA-Zitierstil (8. Ausg.)Não informado. Service and Regulatory Announcements. U.S. Department of Agriculture, Bureau of Animal Industry, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.