APA-Zitierstil (7. Ausg.)

(1999). Code of recommendations and minimum standards for the welfare of pigs (Rev.).

Chicago-Zitierstil (17. Ausg.)

Code of Recommendations and Minimum Standards for the Welfare of Pigs. Rev. Wellington, 1999.

MLA-Zitierstil (9. Ausg.)

Code of Recommendations and Minimum Standards for the Welfare of Pigs. Rev. 1999.