APA استشهاد

Blaug,Mark. (1978). Economic theory in retrospect (3.). Cambridge University Press.

استشهاد بنمط شيكاغو

Blaug,Mark. Economic Theory in Retrospect. 3. London: Cambridge University Press, 1978.

MLA استشهاد

Blaug,Mark. Economic Theory in Retrospect. 3. Cambridge University Press, 1978.