Lua APA (7ú heag.)

BRILHART JOHN K. (2001). EFFECTIVE GROUP DISCUSSION. MCGRAW-HILL.

Lua i Stíl Chicago (17ú heag.)

BRILHART JOHN K. EFFECTIVE GROUP DISCUSSION. BOSTON: MCGRAW-HILL, 2001.

Lua MLA (9ú heag.)

BRILHART JOHN K. EFFECTIVE GROUP DISCUSSION. MCGRAW-HILL, 2001.

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