Newbrook, J. (2002). PET Gold: Exam maximiser. Harlow, England: Longman.
Trích dẫn kiểu ChicagoNewbrook, Jacky. PET Gold: Exam Maximiser. Harlow, England: Longman, 2002.
MLA引文Newbrook, Jacky. PET Gold: Exam Maximiser. Harlow, England: Longman, 2002.
警告:这些引文格式不一定是100%准确.