KIMBALL, B. (1994). Ama Handbook For Succesfull Selling Bob Kimball. NTC Business Books.
Čikaški stil citiranja (17. izdanje)KIMBALL, Bob. Ama Handbook For Succesfull Selling Bob Kimball. NTC Business Books, 1994.
MLA način citiranja (8. izdanje)KIMBALL, Bob. Ama Handbook For Succesfull Selling Bob Kimball. NTC Business Books, 1994.
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