Não informado. (1976). Behavioural analysis and modification. Urban und Schwarzenberg.
Lua i Stíl Chicago (17ú heag.)Não informado. Behavioural Analysis and Modification. Munchen, Alemanha: Urban und Schwarzenberg, 1976.
Lua MLA (8ú heag.)Não informado. Behavioural Analysis and Modification. Urban und Schwarzenberg, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.