Gage, N. (1978). The scientific basis of the art of teaching. Teachers college.
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Chicago-čujuhus (17. p.)
Gage, N.L. The Scientific Basis of the Art of Teaching. New York: Teachers college, 1978.
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MLA-čujuhus (9. p.)
Gage, N.L. The Scientific Basis of the Art of Teaching. Teachers college, 1978.
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