Não informado. (1985). Political Economy: Studies in the surplus aproach. Rosenberg & Sellier.
Lua i Stíl Chicago (17ú heag.)Não informado. Political Economy: Studies in the Surplus Aproach. Torino, Italia: Rosenberg & Sellier, 1985.
Lua MLA (8ú heag.)Não informado. Political Economy: Studies in the Surplus Aproach. Rosenberg & Sellier, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.