APA (7th ed.) Zitazioa
Gregory R Paul & Stuart, R. . C. (1989). Comparative economic systems (3rd ed.). Houghton Mifflin Co.
Chicago Style (17th ed.) Zitazioa
Gregory R Paul eta Robert C. Stuart. Comparative Economic Systems. 3rd ed. Boston: Houghton Mifflin Co, 1989.
MLA (9th ed.) Zitazioa
Gregory R Paul eta Robert C. Stuart. Comparative Economic Systems. 3rd ed. Houghton Mifflin Co, 1989.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.