Não informado. (2001). Journal of Applied Animal Welfare Science. Lawrence Erlbaum Associates.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Applied Animal Welfare Science. Mahwah, NJ: Lawrence Erlbaum Associates, 2001.
Lua MLA (8ú heag.)Não informado. Journal of Applied Animal Welfare Science. Lawrence Erlbaum Associates, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.