LeFever, M. D. (1985). Creative teaching methods. David C. Cook.
Lua i Stíl Chicago (17ú heag.)LeFever, Marlene D. Creative Teaching Methods. Illinois: David C. Cook, 1985.
Lua MLA (9ú heag.)LeFever, Marlene D. Creative Teaching Methods. David C. Cook, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.