Cita APA (7a ed.)

Zeuthen, F. (1955). Economic theory and method. Longmans, Green.

Cita Chicago Style (17a ed.)

Zeuthen, Frederik. Economic Theory and Method. London: Longmans, Green, 1955.

Cita MLA (9a ed.)

Zeuthen, Frederik. Economic Theory and Method. Longmans, Green, 1955.