APA استشهاد

Blaug, M. (1996). Economic theory in retrospect (5th ed.). Uty. Press.

استشهاد بنمط شيكاغو

Blaug, Mark. Economic Theory in Retrospect. 5th ed. Cambridge: Uty. Press, 1996.

MLA استشهاد

Blaug, Mark. Economic Theory in Retrospect. 5th ed. Uty. Press, 1996.