Richards, J. C., & Sandy, C. Passages: Class audio CDs / by Jack C. Richards and Chuck Sandy (2nd ed.). New York : Cambridge University Press, 2008.
Chicago Style CitationRichards, Jack C., and Chuck Sandy. Passages: Class Audio CDs / By Jack C. Richards and Chuck Sandy. 2nd ed. New York : Cambridge University Press, 2008.
MLA CitationRichards, Jack C., and Chuck Sandy. Passages: Class Audio CDs / By Jack C. Richards and Chuck Sandy. 2nd ed. New York : Cambridge University Press, 2008.
Warning: These citations may not always be 100% accurate.