Não informado. (1974). Explorations in economic research. National Bureau of Economic Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Explorations in Economic Research. New York: National Bureau of Economic Research, 1974.
Lua MLA (8ú heag.)Não informado. Explorations in Economic Research. National Bureau of Economic Research, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.