Dyfyniad APA

(2003). TOEFL: Practice tests workbook : Test of English as a foreign language. Thành phố Hồ Chí Minh: Trẻ.

Dyfyniad Arddull Chicago

TOEFL: Practice Tests Workbook : Test of English As a Foreign Language. Thành phố Hồ Chí Minh: Trẻ, 2003.

Dyfyniad MLA

TOEFL: Practice Tests Workbook : Test of English As a Foreign Language. Thành phố Hồ Chí Minh: Trẻ, 2003.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.