Não informado. (1965). Journal of economic studies. University of Aberdeen, Department of Economics.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Economic Studies. Aberdeen, Escocia: University of Aberdeen, Department of Economics, 1965.
Lua MLA (8ú heag.)Não informado. Journal of Economic Studies. University of Aberdeen, Department of Economics, 1965.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.