Sraffa, P. (1960). Production of commodities by means of commodities: Prelude to a critique of economic theory.
Lua i Stíl Chicago (17ú heag.)Sraffa, Piero. Production of Commodities by Means of Commodities: Prelude to a Critique of Economic Theory. Cambridge [Eng.] University Press, 1960.
Lua MLA (9ú heag.)Sraffa, Piero. Production of Commodities by Means of Commodities: Prelude to a Critique of Economic Theory. 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.