Pig Veterinary Society. (1994). Pig Journal. Pig Journal.
Lua i Stíl Chicago (17ú heag.)Pig Veterinary Society. Pig Journal. Malmesbury, Inglaterra: Pig Journal, 1994.
Lua MLA (8ú heag.)Pig Veterinary Society. Pig Journal. Pig Journal, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.