Gage, N. L. (1978). The scientific basis of the art of teaching. Teachers College Press, Teachers College, Columbia University.
Chicago-referens (17:e uppl.)Gage, N. L. The Scientific Basis of the Art of Teaching. New York: Teachers College Press, Teachers College, Columbia University, 1978.
MLA-referens (8:e uppl.)Gage, N. L. The Scientific Basis of the Art of Teaching. Teachers College Press, Teachers College, Columbia University, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.