एपीए उद्धरण

Roncaglia,Alessandro. (1978). Sraffa and the theory of prices. John Wiley & Sons.

शिकागो स्टाइल उद्धरण

Roncaglia,Alessandro. Sraffa and the Theory of Prices. New York: John Wiley & Sons, 1978.

एमएलए उद्धरण

Roncaglia,Alessandro. Sraffa and the Theory of Prices. John Wiley & Sons, 1978.