Cita APA

Lee, W. R., & Coppen, H. E. (1968). Simple audio-visual aids to foreign-language teaching (2nd ed.). Oxford U.P..

Citación estilo Chicago

Lee, W. R., and Helen Elizabeth Coppen. Simple Audio-visual Aids to Foreign-language Teaching. 2nd ed. London: Oxford U.P., 1968.

Cita MLA

Lee, W. R., and Helen Elizabeth Coppen. Simple Audio-visual Aids to Foreign-language Teaching. 2nd ed. Oxford U.P., 1968.