Harvey, J. (1972). Multiple choice qus. for int. economics. Macmillan.
Lua i Stíl Chicago (17ú heag.)Harvey, J. Multiple Choice Qus. for Int. Economics. London: Macmillan, 1972.
Lua MLA (9ú heag.)Harvey, J. Multiple Choice Qus. for Int. Economics. Macmillan, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.