Ling, J., & Smith, A. (2001). English: Workbook. Federal Publications.
Chicago Style (17th ed.) CitationLing, Judy, and Anne Smith. English: Workbook. Singapore: Federal Publications, 2001.
MLA引文Ling, Judy, and Anne Smith. English: Workbook. Federal Publications, 2001.
警告:這些引文格式不一定是100%准確.