Gaya APA

A., K, J. (2005). Jack Welch And The 4E'S Of Leadership ; how to put ge's leadership formula to work in your organization (Trawas) . Boston: Mc Graw Hill.

Gaya MLA

A., Krames, Jeffrey. "Jack Welch And The 4E'S Of Leadership ; how to put ge's leadership formula to work in your organization (Trawas)". Boston: Mc Graw Hill, 2005. Text.