Swan, M., & Walter, C. (1992). The new Cambridge English course - Intermediate: Teacher's book. New York: Cambridge University Press.
Παραπομπή Chicago StyleSwan, Michael, και Catherine Walter. The New Cambridge English Course - Intermediate: Teacher's Book. New York: Cambridge University Press, 1992.
Παραπομπή MLASwan, Michael, και Catherine Walter. The New Cambridge English Course - Intermediate: Teacher's Book. New York: Cambridge University Press, 1992.
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