Day, A. R., Ratcliffe, M. S., & Shepherd, K. (2003). Heating systems: Plant and control. Blackwell.
Cita Chicago (17th ed.)Day, Anthony R., Martin S. Ratcliffe, i Keith Shepherd. Heating Systems: Plant and Control. Oxford: Blackwell, 2003.
Cita MLA (8th ed.)Day, Anthony R., et al. Heating Systems: Plant and Control. Blackwell, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.