Cita APA (7th ed.)

F.Zeuthen. (1957). Economic theory and method. Longmans.

Cita Chicago (17th ed.)

F.Zeuthen. Economic Theory and Method. London: Longmans, 1957.

Cita MLA (9th ed.)

F.Zeuthen. Economic Theory and Method. Longmans, 1957.

Atenció: Aquestes cites poden no estar 100% correctes.