Carol Gibson. (1998). IELTS những điều cần biết: The ABC of IELTS (Practice tests in reading and writing. Tp. HCM: Nxb. Tp. HCM.
Trích dẫn kiểu ChicagoCarol Gibson. IELTS Những điều Cần Biết: The ABC of IELTS (Practice Tests in Reading and Writing. Tp. HCM: Nxb. Tp. HCM, 1998.
MLA引文Carol Gibson. IELTS Những điều Cần Biết: The ABC of IELTS (Practice Tests in Reading and Writing. Tp. HCM: Nxb. Tp. HCM, 1998.
警告:這些引文格式不一定是100%准確.