Ivey, P. W. (1923). Elements of retail salesmanship. MacMillan Company.
Cita Chicago Style (17a ed.)Ivey, Paul Wesley. Elements of Retail Salesmanship. New York: MacMillan Company, 1923.
Cita MLA (9a ed.)Ivey, Paul Wesley. Elements of Retail Salesmanship. MacMillan Company, 1923.
Precaución: Estas citas no son 100% exactas.