Davidow, W. . H. (1989). Total customer service: The ultimate weapon. New York: Harper Perennial.
シカゴスタイル引用形Davidow, William H. Total Customer Service: The Ultimate Weapon. New York: Harper Perennial, 1989.
MLA引用形式Davidow, William H. Total Customer Service: The Ultimate Weapon. New York: Harper Perennial, 1989.
警告: この引用は必ずしも正確ではありません.