Παραπομπή APA

Ricardo, D. (1971). The principles of political economy, and taxation. New York: Penguin Book.

Παραπομπή Chicago Style

Ricardo, David. The Principles of Political Economy, and Taxation. New York: Penguin Book, 1971.

Παραπομπή MLA

Ricardo, David. The Principles of Political Economy, and Taxation. New York: Penguin Book, 1971.

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