APA (7th ed.) Citation

Laughton, M. A., & Say, M. G. (1985). Electrical engineer's reference book (14th ed.). Butterworths.

Chicago Style (17th ed.) Citation

Laughton, M. A., and M. G. Say. Electrical Engineer's Reference Book. 14th ed. London: Butterworths, 1985.

MLA (9th ed.) Citation

Laughton, M. A., and M. G. Say. Electrical Engineer's Reference Book. 14th ed. Butterworths, 1985.