Giuliani, R. (2002). Leadership. Hyperion.
Chicago-čujuhus (17. p.)Giuliani, Rudolph. Leadership. New york: Hyperion, 2002.
MLA-čujuhus (9. p.)Giuliani, Rudolph. Leadership. Hyperion, 2002.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.