Mort, T. A. (1977). Systematic selling, how to influence the buying decision process. Amacom.
Čikaški stil citiranja (17. izdanje)Mort, Terry A. Systematic Selling, How to Influence the Buying Decision Process. Amacom, 1977.
MLA način citiranja (8. izdanje)Mort, Terry A. Systematic Selling, How to Influence the Buying Decision Process. Amacom, 1977.
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