Bolling, C. L. (1930). Retail Salesmanship: A Practical Guide to Modern Methods of Sales Persuasion Demonstration and service (2nd ed.). Isaac Pitman.
Styl cytowania ChicagoBolling, Cunliffe L. Retail Salesmanship: A Practical Guide to Modern Methods of Sales Persuasion Demonstration and Service. 2nd ed. London: Isaac Pitman, 1930.
Styl cytowania MLABolling, Cunliffe L. Retail Salesmanship: A Practical Guide to Modern Methods of Sales Persuasion Demonstration and Service. 2nd ed. Isaac Pitman, 1930.
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