Coppen, H., & Lee, W. (1970). Simple audio-visual aids to foreign-language teaching. Oxford University Press.
Chicago Style (17th ed.) CitationCoppen, Helen, and W.R Lee. Simple Audio-visual Aids to Foreign-language Teaching. Oxford University Press, 1970.
MLA (8th ed.) CitationCoppen, Helen, and W.R Lee. Simple Audio-visual Aids to Foreign-language Teaching. Oxford University Press, 1970.
Warning: These citations may not always be 100% accurate.