Dyfyniad APA

Stumm, D. A. (1985). The new sales manager's survival guide. National Book Store.

Dyfyniad Arddull Chicago

Stumm, David A. The New Sales Manager's Survival Guide. Manila: National Book Store, 1985.

Dyfyniad MLA

Stumm, David A. The New Sales Manager's Survival Guide. National Book Store, 1985.

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