Cita APA

Robertson, D. (1972). Internation trade policy. London: Mamillan.

Chicago Style Citation

Robertson, David. Internation Trade Policy. London: Mamillan, 1972.

Cita MLA

Robertson, David. Internation Trade Policy. London: Mamillan, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.