(2000). Negotiate to succeed. London: Hawksmere.
Chicago Style aipamenaNegotiate to Succeed. London: Hawksmere, 2000.
MLA aipamenaNegotiate to Succeed. London: Hawksmere, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
(2000). Negotiate to succeed. London: Hawksmere.
Chicago Style aipamenaNegotiate to Succeed. London: Hawksmere, 2000.
MLA aipamenaNegotiate to Succeed. London: Hawksmere, 2000.