APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.