Routh, G. (1989). The origin of economic ideas (2nd ed.). Macmillan.
Cita Chicago (17th ed.)Routh, Guy. The Origin of Economic Ideas. 2nd ed. London: Macmillan, 1989.
Cita MLA (9th ed.)Routh, Guy. The Origin of Economic Ideas. 2nd ed. Macmillan, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.