Leahey, T. H. (1989). Human learning (2nd.ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Leahey, Thomas H. Human Learning. 2nd.ed. New Jersey: Prentice Hall, 1989.
Lua MLA (9ú heag.)Leahey, Thomas H. Human Learning. 2nd.ed. Prentice Hall, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.