APA استشهاد

Hay, D. A., & Morris, D. J. (1979). Industrial economics: Theory and evidence. Oxford university.

استشهاد بنمط شيكاغو

Hay, Donald A., و Derek J. Morris. Industrial Economics: Theory and Evidence. London: Oxford university, 1979.

MLA استشهاد

Hay, Donald A., و Derek J. Morris. Industrial Economics: Theory and Evidence. Oxford university, 1979.