APA (7th ed.) Citation

Knapp, D. (1999). A guide to customer service skills for the help desk professional. Course Technology.

Chicago Style (17th ed.) Citation

Knapp, Donna. A Guide to Customer Service Skills for the Help Desk Professional. Cambridge, Mass: Course Technology, 1999.

MLA (9th ed.) Citation

Knapp, Donna. A Guide to Customer Service Skills for the Help Desk Professional. Course Technology, 1999.