Tschohl, J. (1997). Achieving excellence through customer service. Jaico.
Chicago Style (17th ed.) CitationTschohl, John. Achieving Excellence Through Customer Service. Bombay: Jaico, 1997.
MLA引文Tschohl, John. Achieving Excellence Through Customer Service. Jaico, 1997.
警告:這些引文格式不一定是100%准確.