Phillips, D. (2002). Longman introductory course for the TOEFL Test. New York: Longman.
Trích dẫn kiểu ChicagoPhillips, Deborah. Longman Introductory Course for the TOEFL Test. New York: Longman, 2002.
Deismireacht MLAPhillips, Deborah. Longman Introductory Course for the TOEFL Test. New York: Longman, 2002.
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