Meade, J. E. (1952). Geometry of international trade. Allen& Unwin.
Chicago Style (17th ed.) ZitazioaMeade, James Edward. Geometry of International Trade. London: Allen& Unwin, 1952.
MLA (9th ed.) ZitazioaMeade, James Edward. Geometry of International Trade. Allen& Unwin, 1952.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.