Futrell, C. M. (2014). Fundamentals of Selling customers for life through service. McGraw Hill.
Čikaški stil citiranja (17. izdanje)Futrell, Charles M. Fundamentals of Selling Customers for Life Through Service. McGraw Hill, 2014.
MLA način citiranja (8. izdanje)Futrell, Charles M. Fundamentals of Selling Customers for Life Through Service. McGraw Hill, 2014.
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