APA-čujuhus (7. p.)
Gerson, R. F. (1993). Measuring customer satisfaction. Crisp Publications.
Chicago-čujuhus (17. p.)
Gerson, Richard F. Measuring Customer Satisfaction. Menlo Park, Calif.: Crisp Publications, 1993.
MLA-čujuhus (9. p.)
Gerson, Richard F. Measuring Customer Satisfaction. Crisp Publications, 1993.
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