Cita APA

Samuelson, P. A. (1972). International economic relations. London: MacMillan.

Chicago Style Citation

Samuelson, Paul A. International Economic Relations. London: MacMillan, 1972.

Cita MLA

Samuelson, Paul A. International Economic Relations. London: MacMillan, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.