Prabuddha, N. R. (1977). The Pure theory of international trade. Progressive pub.
Cita Chicago (17th ed.)Prabuddha, Nath Roy. The Pure Theory of International Trade. Calcutta: Progressive pub, 1977.
Cita MLA (9th ed.)Prabuddha, Nath Roy. The Pure Theory of International Trade. Progressive pub, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.