BIEHLER, R. F. (1971). Psychology applied to teaching. Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)BIEHLER, Robert F. Psychology Applied to Teaching. Boston: Houghton Mifflin, 1971.
Lua MLA (9ú heag.)BIEHLER, Robert F. Psychology Applied to Teaching. Houghton Mifflin, 1971.
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