Kovacs, K. E. (2019). Speaking for IELTS (Second edition.). Collins.
Chicago Style (17th ed.) CitationKovacs, Karen E. Speaking for IELTS. Second edition. London: Collins, 2019.
MLA引文Kovacs, Karen E. Speaking for IELTS. Second edition. Collins, 2019.
警告:這些引文格式不一定是100%准確.