Lua APA (7ú heag.)

Epstein Chris Clarke. (2002). 78Important Questions Every Leader Should Ask And Answer. AMACOM,American Management Association.

Lua i Stíl Chicago (17ú heag.)

Epstein Chris Clarke. 78Important Questions Every Leader Should Ask And Answer. USA: AMACOM,American Management Association, 2002.

Lua MLA (9ú heag.)

Epstein Chris Clarke. 78Important Questions Every Leader Should Ask And Answer. AMACOM,American Management Association, 2002.

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