एपीए उद्धरण

Roncaglia, A. (1977). Sraffa and the theory of prices. John Wiley.

शिकागो स्टाइल उद्धरण

Roncaglia, Alessandro. Sraffa and the Theory of Prices. Chichester: John Wiley, 1977.

एमएलए उद्धरण

Roncaglia, Alessandro. Sraffa and the Theory of Prices. John Wiley, 1977.