Marsh, U. G. (1972). Salesmanship: Modern principles and practise. Prentice-Hall of India.
Čikaški stil citiranjaMarsh, U. Grant. Salesmanship: Modern Principles and Practise. New Jersey: Prentice-Hall of India, 1972.
MLA način citiranjaMarsh, U. Grant. Salesmanship: Modern Principles and Practise. Prentice-Hall of India, 1972.
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