APA استشهاد

Joel, A. E. (1976). Electronic switching: Central office system of the world. Institute of Electrical and Electronics Engineers.

استشهاد بنمط شيكاغو

Joel, Amos E. Electronic Switching: Central Office System of the World. New York: Institute of Electrical and Electronics Engineers, 1976.

MLA استشهاد

Joel, Amos E. Electronic Switching: Central Office System of the World. Institute of Electrical and Electronics Engineers, 1976.