APA-čujuhus (7. p.)

Black, S. (1976). Practical public relations (4th.). Pitman.

Chicago-čujuhus (17. p.)

Black, Sam. Practical Public Relations. 4th. London: Pitman, 1976.

MLA-čujuhus (9. p.)

Black, Sam. Practical Public Relations. 4th. Pitman, 1976.

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