एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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