Azar, B. S. (1993). Understanding and Using English Grammar.Chartbook: A Reference Grammar. New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoAzar, Betty Schrampfer. Understanding and Using English Grammar.Chartbook: A Reference Grammar. New Jersey: Prentice-Hall, 1993.
Deismireacht MLAAzar, Betty Schrampfer. Understanding and Using English Grammar.Chartbook: A Reference Grammar. New Jersey: Prentice-Hall, 1993.
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