Não informado. (1973). Animal Learning and Behavior. Psychonomic Society.
Lua i Stíl Chicago (17ú heag.)Não informado. Animal Learning and Behavior. Austin, Tex: Psychonomic Society, 1973.
Lua MLA (8ú heag.)Não informado. Animal Learning and Behavior. Psychonomic Society, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.