APA استشهاد

Morgenstern, O. (1963). On the accuracy of economic observations (2nd ed.). Princeton University Press.

استشهاد بنمط شيكاغو

Morgenstern, Oskar. On the Accuracy of Economic Observations. 2nd ed. New Jersey: Princeton University Press, 1963.

MLA استشهاد

Morgenstern, Oskar. On the Accuracy of Economic Observations. 2nd ed. Princeton University Press, 1963.