Não informado. (1979). Studies in political economy. Social Science and Humanities Research Council of Canada.
Lua i Stíl Chicago (17ú heag.)Não informado. Studies in Political Economy. Ottawa: Social Science and Humanities Research Council of Canada, 1979.
Lua MLA (8ú heag.)Não informado. Studies in Political Economy. Social Science and Humanities Research Council of Canada, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.