APA aipamena

Klein,Daniel B. (1999). What do economists contribute ? Mac Millan.

Chicago Style aipamena

Klein,Daniel B. What Do Economists Contribute ? London: Mac Millan, 1999.

MLA aipamena

Klein,Daniel B. What Do Economists Contribute ? Mac Millan, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.