Cole, R. D. (1937). Modern foreign languages and their teaching. Appleton Century Crofts.
Citace podle Chicago (17th ed.)Cole, Robert D. Modern Foreign Languages and Their Teaching. New York: Appleton Century Crofts, 1937.
Citace podle MLA (9th ed.)Cole, Robert D. Modern Foreign Languages and Their Teaching. Appleton Century Crofts, 1937.
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