Hudson, C. . L. (1967). Professional Salesmanship. Staples Press.
Chicago Style citaatHudson, Cyril L. Professional Salesmanship. London: Staples Press, 1967.
MLA citatieHudson, Cyril L. Professional Salesmanship. Staples Press, 1967.
Let op: Deze citaties zijn niet altijd 100% accuraat.