Bharadwaj, K., & Schefold, B. (1990). Essays on Piero Sraffa: Critical perspectives on the revival of classical theory. Oxford University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBharadwaj, Krishna, और Bertram Schefold. Essays on Piero Sraffa: Critical Perspectives on the Revival of Classical Theory. Oxford University Press, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBharadwaj, Krishna, और Bertram Schefold. Essays on Piero Sraffa: Critical Perspectives on the Revival of Classical Theory. Oxford University Press, 1990.
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