APA (7th ed.) Citation

Northcroft, L. G., & Barber, W. M. (1968). Steam trapping and air venting (4th ed. (revised).). Hutchinson.

Chicago Style (17th ed.) Citation

Northcroft, L. G., and W. M. Barber. Steam Trapping and Air Venting. 4th ed. (revised). London: Hutchinson, 1968.

MLA (8th ed.) Citation

Northcroft, L. G., and W. M. Barber. Steam Trapping and Air Venting. 4th ed. (revised). Hutchinson, 1968.