APA (7 ম সংস্করণ) উদ্ধৃতি

Bharadwaj, K., & Schefold, B. (1990). Essays on Piero Sraffa: Critical perspectives on the revival of classical theory. Oxford University Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Bharadwaj, Krishna, এবং Bertram Schefold. Essays on Piero Sraffa: Critical Perspectives on the Revival of Classical Theory. Oxford University Press, 1990.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Bharadwaj, Krishna, এবং Bertram Schefold. Essays on Piero Sraffa: Critical Perspectives on the Revival of Classical Theory. Oxford University Press, 1990.