Gold, J., Thorpe, R., & Mumford, A. Gower handbook of leadership and management development (5th ed.).
Lua i Stíl Chicago (17ú heag.)Gold, Jeff, Richard Thorpe, agus Alan Mumford. Gower Handbook of Leadership and Management Development. 5th ed.
Lua MLA (8ú heag.)Gold, Jeff, et al. Gower Handbook of Leadership and Management Development. 5th ed.
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