Blodgett, R. H. (1949). Comparative economic systems (Rev. ed.). Macmillan.
Chicago Style aipamenaBlodgett, Ralph Hamilton. Comparative Economic Systems. Rev. ed. New York: Macmillan, 1949.
MLA aipamenaBlodgett, Ralph Hamilton. Comparative Economic Systems. Rev. ed. Macmillan, 1949.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.