Haas, K. B. (1957). How to develop successful salesmen. Tata McGraw Hill.
Chicago Style aipamenaHaas, Kenneth B. How to Develop Successful Salesmen. New Delhi: Tata McGraw Hill, 1957.
MLA aipamenaHaas, Kenneth B. How to Develop Successful Salesmen. Tata McGraw Hill, 1957.
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