Porges, J., & Porges, F. (1976). Handbook of heating, ventilating and air conditioning: Ready-reference tables and data (7th edition.). Newnes-Butterworths.
Chicago-viite (17. p.)Porges, John, ja F. Porges. Handbook of Heating, Ventilating and Air Conditioning: Ready-reference Tables and Data. 7th edition. London: Newnes-Butterworths, 1976.
MLA-viite (9. p.)Porges, John, ja F. Porges. Handbook of Heating, Ventilating and Air Conditioning: Ready-reference Tables and Data. 7th edition. Newnes-Butterworths, 1976.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.