Marsh, U. G. (1972). Salesmanship: Modern principles and practise. Prentice-Hall of India.
Chicago Edition CitationMarsh, U. Grant. Salesmanship: Modern Principles and Practise. New Jersey: Prentice-Hall of India, 1972.
ציטוט MLAMarsh, U. Grant. Salesmanship: Modern Principles and Practise. Prentice-Hall of India, 1972.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.