APA (7th ed.) Citation

Tschohl, J. (1996). Achieving excellence through customer service (2nd ed.). Advantage Quest Publications.

Chicago Style (17th ed.) Citation

Tschohl, John. Achieving Excellence Through Customer Service. 2nd ed. Petaling Jaya: Advantage Quest Publications, 1996.

MLA (8th ed.) Citation

Tschohl, John. Achieving Excellence Through Customer Service. 2nd ed. Advantage Quest Publications, 1996.