Canfield, B. R., & Moore, H. F. (1973). Public relations: Principles, cases, and problems (6th ed.). R. D. Irwin National Book Store.
Lua i Stíl Chicago (17ú heag.)Canfield, Bertrand R., agus H. Frazier Moore. Public Relations: Principles, Cases, and Problems. 6th ed. Homewood, Ill., Manila: R. D. Irwin National Book Store, 1973.
Lua MLA (9ú heag.)Canfield, Bertrand R., agus H. Frazier Moore. Public Relations: Principles, Cases, and Problems. 6th ed. R. D. Irwin National Book Store, 1973.
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