Παραπομπή APA

Knights, C. C. (1926). Training for more sales: A textbook of retail salesmanship. London: Sir I. Pitman & Sons.

Παραπομπή Chicago Style

Knights, Charles C. Training for More Sales: A Textbook of Retail Salesmanship. London: Sir I. Pitman & Sons, 1926.

Παραπομπή MLA

Knights, Charles C. Training for More Sales: A Textbook of Retail Salesmanship. London: Sir I. Pitman & Sons, 1926.

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