Παραπομπή APA

Knights, C. C. (1930). The technique of salesmanship: A textbook of commercial travelling and speciality selling (2nd ed.). London: Sir I. Pitman & Sons.

Παραπομπή Chicago Style

Knights, Charles C. The Technique of Salesmanship: A Textbook of Commercial Travelling and Speciality Selling. 2nd ed. London: Sir I. Pitman & Sons, 1930.

Παραπομπή MLA

Knights, Charles C. The Technique of Salesmanship: A Textbook of Commercial Travelling and Speciality Selling. 2nd ed. London: Sir I. Pitman & Sons, 1930.

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