Harrod, R. F. (1952). International economics. J. Nisbet.
Lua i Stíl Chicago (17ú heag.)Harrod, Roy Forbes. International Economics. London: J. Nisbet, 1952.
Lua MLA (9ú heag.)Harrod, Roy Forbes. International Economics. J. Nisbet, 1952.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.