APA استشهاد

Say, M. G. (1978). Introduction to the unified theory of electromagnetic machines. Pitman.

استشهاد بنمط شيكاغو

Say, M G. Introduction to the Unified Theory of Electromagnetic Machines. London: Pitman, 1978.

MLA استشهاد

Say, M G. Introduction to the Unified Theory of Electromagnetic Machines. Pitman, 1978.