APA ציטוט

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

Chicago Edition Citation

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

ציטוט MLA

Koopmans, Tjalling C. Three Essays on the State of Eocnomic Science. McGraw Hill, 1957.