Aston, M. (2002). Check your vocabulary for English for the TOEFL test ( A workbook for students ): = Thực hành từ vựng bài thi TOEFL. Tp. HCM: Tp. HCM.
استشهاد بنمط شيكاغوAston, Mark. Check Your Vocabulary for English for the TOEFL Test ( A Workbook for Students ): = Thực Hành Từ Vựng Bài Thi TOEFL. Tp. HCM: Tp. HCM, 2002.
MLA استشهادAston, Mark. Check Your Vocabulary for English for the TOEFL Test ( A Workbook for Students ): = Thực Hành Từ Vựng Bài Thi TOEFL. Tp. HCM: Tp. HCM, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.