Klein, S. B. (2012). Learning principles and applications (6th ed.). Sage.
Lua i Stíl Chicago (17ú heag.)Klein, Stephen B. Learning Principles and Applications. 6th ed. Los Angeles: Sage, 2012.
Lua MLA (9ú heag.)Klein, Stephen B. Learning Principles and Applications. 6th ed. Sage, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.