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