Gude, K. (2001). Matrix: Upper - Intermediate Workbook. Oxford: Oxford Univ. Press.
Trích dẫn kiểu ChicagoGude, Kathy. Matrix: Upper - Intermediate Workbook. Oxford: Oxford Univ. Press, 2001.
MLA引文Gude, Kathy. Matrix: Upper - Intermediate Workbook. Oxford: Oxford Univ. Press, 2001.
警告:这些引文格式不一定是100%准确.