Lua APA (7ú heag.)

Brilhart, J. K. (1974). Effective group discussion (2nd ed.). WM. C. Brown.

Lua i Stíl Chicago (17ú heag.)

Brilhart, John K. Effective Group Discussion. 2nd ed. Iowa: WM. C. Brown, 1974.

Lua MLA (9ú heag.)

Brilhart, John K. Effective Group Discussion. 2nd ed. WM. C. Brown, 1974.

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