APA način citiranja (7. izdanje)

(1970). Modern Business: Sales And Sales Management / Elmer G. Leterman. Alexander Hamilton Institute.

Čikaški stil citiranja (17. izdanje)

Modern Business: Sales And Sales Management / Elmer G. Leterman. Alexander Hamilton Institute, 1970.

MLA način citiranja (8. izdanje)

Modern Business: Sales And Sales Management / Elmer G. Leterman. Alexander Hamilton Institute, 1970.

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