APA aipamena

HAGEL JOHN. (1999). NET GAIN. HARVARD BUSINESS SCHOOL.

Chicago Style aipamena

HAGEL JOHN. NET GAIN. BOSTON: HARVARD BUSINESS SCHOOL, 1999.

MLA aipamena

HAGEL JOHN. NET GAIN. HARVARD BUSINESS SCHOOL, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.