APA-čujuhus (7. p.)

Doctor, R. (1983). Principles & practice of business communication (8th.). Sheth.

Chicago-čujuhus (17. p.)

Doctor, Radaha. Principles & Practice of Business Communication. 8th. Bombay: Sheth, 1983.

MLA-čujuhus (9. p.)

Doctor, Radaha. Principles & Practice of Business Communication. 8th. Sheth, 1983.

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