APA (7th ed.) Citation

Allen, T. P., & Steven, R. E. (1979). Selected calculations in electric power: T.P. Allen, R.E.Steven. Hodder and Stoughton.

Chicago Style (17th ed.) Citation

Allen, T. P., and R. E. Steven. Selected Calculations in Electric Power: T.P. Allen, R.E.Steven. London: Hodder and Stoughton, 1979.

MLA (9th ed.) Citation

Allen, T. P., and R. E. Steven. Selected Calculations in Electric Power: T.P. Allen, R.E.Steven. Hodder and Stoughton, 1979.