Cameron, P. (2011). Prepare for IELTS: Academic practice tests. Thành phố Hồ Chí Minh: Trẻ.
Trích dẫn kiểu ChicagoCameron, Penny. Prepare for IELTS: Academic Practice Tests. Thành phố Hồ Chí Minh: Trẻ, 2011.
ציטוט MLACameron, Penny. Prepare for IELTS: Academic Practice Tests. Thành phố Hồ Chí Minh: Trẻ, 2011.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.