APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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