APA aipamena

Robert, H. (1998). Making decisions. Dorling kindersleq.

Chicago Style aipamena

Robert, Heller. Making Decisions. London: Dorling kindersleq, 1998.

MLA aipamena

Robert, Heller. Making Decisions. Dorling kindersleq, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.