GIULIANI RUDOLPH W. (2002). LEADERSHIP. HYPERION.
Chicago Style aipamenaGIULIANI RUDOLPH W. LEADERSHIP. NEW YORK: HYPERION, 2002.
MLA aipamenaGIULIANI RUDOLPH W. LEADERSHIP. HYPERION, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
GIULIANI RUDOLPH W. (2002). LEADERSHIP. HYPERION.
Chicago Style aipamenaGIULIANI RUDOLPH W. LEADERSHIP. NEW YORK: HYPERION, 2002.
MLA aipamenaGIULIANI RUDOLPH W. LEADERSHIP. HYPERION, 2002.