Doctor, R. (1983). Principles & practice of business communication (8th.). Sheth.
Chicagoスタイル(17版)引用形式Doctor, Radaha. Principles & Practice of Business Communication. 8th. Bombay: Sheth, 1983.
MLA(9版)引用形式Doctor, Radaha. Principles & Practice of Business Communication. 8th. Sheth, 1983.
警告: この引用は必ずしも正確ではありません.