Werner, P. K. (1997). Interactions access: A communicative grammar. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoWerner, Patricia K. Interactions Access: A Communicative Grammar. New York: McGraw-Hill, 1997.
MLA citiranjeWerner, Patricia K. Interactions Access: A Communicative Grammar. New York: McGraw-Hill, 1997.
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