APA aipamena

Gregory, P. R., & Stuart, R. C. (1999). Comparative economic systems (6th ed.). Boston: Houghton Mifflin.

Chicago Style aipamena

Gregory, Paul R., và Robert C. Stuart. Comparative Economic Systems. 6th ed. Boston: Houghton Mifflin, 1999.

MLA aipamena

Gregory, Paul R., và Robert C. Stuart. Comparative Economic Systems. 6th ed. Boston: Houghton Mifflin, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.