APA ציטוט

O"connor, J., & Fletcher, C. (1989). Sounds English: A Pronunciation Practice Book. London: Longman.

Trích dẫn kiểu Chicago

O"connor, J.d., và Clare Fletcher. Sounds English: A Pronunciation Practice Book. London: Longman, 1989.

ציטוט MLA

O"connor, J.d., và Clare Fletcher. Sounds English: A Pronunciation Practice Book. London: Longman, 1989.