O'Connor, J. D., & Fletcher, C. (1990). Sounds English: A pronunciation practice book. TP. HCM: Tổng hợp.
استشهاد بنمط شيكاغوO'Connor, J. D., و Clare Fletcher. Sounds English: A Pronunciation Practice Book. TP. HCM: Tổng hợp, 1990.
MLA استشهادO'Connor, J. D., و Clare Fletcher. Sounds English: A Pronunciation Practice Book. TP. HCM: Tổng hợp, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.