APA aipamena

Arnold, R. A. (1999). Economics in our times. Lincolnwood, Illinois.

Chicago Style aipamena

Arnold, Roger A. Economics in Our Times. Lincolnwood, Illinois, 1999.

MLA aipamena

Arnold, Roger A. Economics in Our Times. Lincolnwood, Illinois, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.