Swan, M., & Walter, C. (1990). C - The new cambridge English course: Michael Swan, Catherine Walter. New York: Cambridge University Press.
Dyfyniad Arddull ChicagoSwan, Michael, và Catherine Walter. C - The New Cambridge English Course: Michael Swan, Catherine Walter. New York: Cambridge University Press, 1990.
Dyfyniad MLASwan, Michael, và Catherine Walter. C - The New Cambridge English Course: Michael Swan, Catherine Walter. New York: Cambridge University Press, 1990.
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