Lua APA (7ú heag.)

Brilhart, J. K. (1982). Effective group discussion (4th ed.). Wm. C. Brown Pub..

Lua i Stíl Chicago (17ú heag.)

Brilhart, John K. Effective Group Discussion. 4th ed. Iowa: Wm. C. Brown Pub., 1982.

Lua MLA (9ú heag.)

Brilhart, John K. Effective Group Discussion. 4th ed. Wm. C. Brown Pub., 1982.

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