Gaya APA

Lele, M, M., Sheth, J, N. (1980). The Customer Is Key ; Gaining An Unbeatable Advantage Through Customer Satisfaction . New York: John Wiley & Sons, Inc.

Gaya MLA

Lele, Milind, M.., Sheth, Jagdish, N.. "The Customer Is Key ; Gaining An Unbeatable Advantage Through Customer Satisfaction". New York: John Wiley & Sons, Inc, 1980. Text.