Não informado. (1971). Journal of International Economics. Elsevier Science Publishers.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of International Economics. Amsterdam: Elsevier Science Publishers, 1971.
Lua MLA (8ú heag.)Não informado. Journal of International Economics. Elsevier Science Publishers, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.