Doctor, R. (1983). Principles & practice of business communication (8th.). Sheth.
芝加哥风格引文Doctor, Radaha. Principles & Practice of Business Communication. 8th. Bombay: Sheth, 1983.
MLA引文Doctor, Radaha. Principles & Practice of Business Communication. 8th. Sheth, 1983.
警告：这些引文格式不一定是100％准确.