APA استشهاد

Purcell, E. M. (1985). Electricity and magnetism (2nd ed.). McGraw-Hill.

استشهاد بنمط شيكاغو

Purcell, Edward M. Electricity and Magnetism. 2nd ed. New York: McGraw-Hill, 1985.

MLA استشهاد

Purcell, Edward M. Electricity and Magnetism. 2nd ed. McGraw-Hill, 1985.