APA (7th ed.) Citation

Koopmans, T. C. (1957). Three essays on the state of economic science. Augustus M. Kelly.

Chicago Style (17th ed.) Citation

Koopmans, Tjalling Charles. Three Essays on the State of Economic Science. New Jersey: Augustus M. Kelly, 1957.

MLA (9th ed.) Citation

Koopmans, Tjalling Charles. Three Essays on the State of Economic Science. Augustus M. Kelly, 1957.