Canfield, B. R. (1958). Salesmanship; Practice and Problems (3rd ed.). McGraw-Hill.
Chicago Edition CitationCanfield, Bertrand R. Salesmanship; Practice and Problems. 3rd ed. New York: McGraw-Hill, 1958.
MLA引文Canfield, Bertrand R. Salesmanship; Practice and Problems. 3rd ed. McGraw-Hill, 1958.
警告:這些引文格式不一定是100%准確.