Gage, N. L. (1978). The scientific basis of the art of teaching. Teachers College Press, Teachers College, Columbia University.
Citace podle Chicago (17th ed.)Gage, N. L. The Scientific Basis of the Art of Teaching. New York: Teachers College Press, Teachers College, Columbia University, 1978.
Citace podle MLA (8th ed.)Gage, N. L. The Scientific Basis of the Art of Teaching. Teachers College Press, Teachers College, Columbia University, 1978.
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