GIFFORD JONATHAN. (2019). 100 GREAT LEADERSHIP IDEAS. EMBASSY BOOKS.
Cita Chicago (17th ed.)GIFFORD JONATHAN. 100 GREAT LEADERSHIP IDEAS. MUMBAI: EMBASSY BOOKS, 2019.
Cita MLA (9th ed.)GIFFORD JONATHAN. 100 GREAT LEADERSHIP IDEAS. EMBASSY BOOKS, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.