Bachman, J. W. (1956). How to use audio-visual materials. Association Press.
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Dyfyniad Arddull Chicago
Bachman, John Walter. How to Use Audio-visual Materials. New York: Association Press, 1956.
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Dyfyniad MLA
Bachman, John Walter. How to Use Audio-visual Materials. Association Press, 1956.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.