Cita APA (7th ed.)

HUGHES RICHARD L. (2014). LEADERSHIP (7TH ED.). MCGRAW HILL EDUCATION.

Cita Chicago (17th ed.)

HUGHES RICHARD L. LEADERSHIP. 7TH ED. NEW DELHI: MCGRAW HILL EDUCATION, 2014.

Cita MLA (9th ed.)

HUGHES RICHARD L. LEADERSHIP. 7TH ED. MCGRAW HILL EDUCATION, 2014.