Clark, C. M. (1995). Thoughtful teaching. Teachers College Press.
Lua i Stíl Chicago (17ú heag.)Clark, Christopher M. Thoughtful Teaching. New York: Teachers College Press, 1995.
Lua MLA (9ú heag.)Clark, Christopher M. Thoughtful Teaching. Teachers College Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.