HUGHES RICHARD L. (2014). LEADERSHIP (7TH ED.). MCGRAW HILL EDUCATION.
Chicago-čujuhus (17. p.)HUGHES RICHARD L. LEADERSHIP. 7TH ED. NEW DELHI: MCGRAW HILL EDUCATION, 2014.
MLA-čujuhus (9. p.)HUGHES RICHARD L. LEADERSHIP. 7TH ED. MCGRAW HILL EDUCATION, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.