Thomas, F. W. (1927). Principles and technique of teaching: An introduction to the study of the teaching art. Houghton Miiflin and Company.
Lua i Stíl Chicago (17ú heag.)Thomas, Frank Waters. Principles and Technique of Teaching: An Introduction to the Study of the Teaching Art. New York: Houghton Miiflin and Company, 1927.
Lua MLA (9ú heag.)Thomas, Frank Waters. Principles and Technique of Teaching: An Introduction to the Study of the Teaching Art. Houghton Miiflin and Company, 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.