Krames, J. (2005). Jack Welch and the 4 E`s of leadership: How to put GE`s leadership formula work in your organization. Tata McGraw Hill.
Citazione stile Chigago Style (17a edizione)Krames, Jeggrey. Jack Welch and the 4 E`s of Leadership: How to Put GE`s Leadership Formula Work in Your Organization. New Delhi: Tata McGraw Hill, 2005.
Citatione MLA (9a ed.)Krames, Jeggrey. Jack Welch and the 4 E`s of Leadership: How to Put GE`s Leadership Formula Work in Your Organization. Tata McGraw Hill, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.