GALE BRADLEY T. (1994). MANAGING CUSTOMER VALUE: CREATING QUALITY & SERVICE THAT CUSTOMER CAN SEE. FREE PRESS.
Chicago-referens (17:e uppl.)GALE BRADLEY T. MANAGING CUSTOMER VALUE: CREATING QUALITY & SERVICE THAT CUSTOMER CAN SEE. NEW YORK: FREE PRESS, 1994.
MLA-referens (9:e uppl.)GALE BRADLEY T. MANAGING CUSTOMER VALUE: CREATING QUALITY & SERVICE THAT CUSTOMER CAN SEE. FREE PRESS, 1994.
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