APA (7th ed.) Citation

Day, A. R., Ratcliffe, M. S., & Shepherd, K. (2003). Heating systems: Plant and control. Blackwell.

Chicago Style (17th ed.) Citation

Day, Anthony R., Martin S. Ratcliffe, and Keith Shepherd. Heating Systems: Plant and Control. Oxford: Blackwell, 2003.

MLA (8th ed.) Citation

Day, Anthony R., et al. Heating Systems: Plant and Control. Blackwell, 2003.