Cita APA (7th ed.)

Koopmans, T. C. (1957). Three essays on the state of economic science: Three essays on the state of economic science. McGraw-Hill.

Cita Chicago (17th ed.)

Koopmans, Tjalling C. Three Essays on the State of Economic Science: Three Essays on the State of Economic Science. New York: McGraw-Hill, 1957.

Cita MLA (9th ed.)

Koopmans, Tjalling C. Three Essays on the State of Economic Science: Three Essays on the State of Economic Science. McGraw-Hill, 1957.