Karr, R., & Blohowiak, D. (1998). Complete idiot's guide to great customer service (1st.). Prentice-Hall..
シカゴスタイル引用形Karr, Ron, , Don Blohowiak. Complete Idiot's Guide to Great Customer Service. 1st. N,Delhi: Prentice-Hall., 1998.
MLA引用形式Karr, Ron, , Don Blohowiak. Complete Idiot's Guide to Great Customer Service. 1st. Prentice-Hall., 1998.
警告: この引用は必ずしも正確ではありません.