Não informado. (1939). Manchester school of economic and social studies. Basil Blackwell.
Lua i Stíl Chicago (17ú heag.)Não informado. Manchester School of Economic and Social Studies. Oxford, Inglaterra: Basil Blackwell, 1939.
Lua MLA (8ú heag.)Não informado. Manchester School of Economic and Social Studies. Basil Blackwell, 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.