APA引文

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.

MLA引文

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

警告：這些引文格式不一定是100％准確.