Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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