APA (7th ed.) Citation

Say, M. G. (1974). Electrotechnology (3. edition.). Butterworths.

Chicago Style (17th ed.) Citation

Say, M. G. Electrotechnology. 3. edition. London: Butterworths, 1974.

MLA (9th ed.) Citation

Say, M. G. Electrotechnology. 3. edition. Butterworths, 1974.