Robinson, O. P. (1950). Successful retail salesmanship (2nd ed.). Prentice-Hall.
Chicagoスタイル(17版)引用形式Robinson, O. Preston. Successful Retail Salesmanship. 2nd ed. New York: Prentice-Hall, 1950.
MLA(9版)引用形式Robinson, O. Preston. Successful Retail Salesmanship. 2nd ed. Prentice-Hall, 1950.
警告: この引用は必ずしも正確ではありません.