Hudson, C. . L. (1967). Professional Salesmanship. Staples Press.
Chicago Edition CitationHudson, Cyril L. Professional Salesmanship. London: Staples Press, 1967.
MLA引文Hudson, Cyril L. Professional Salesmanship. Staples Press, 1967.
警告:這些引文格式不一定是100%准確.