APA (7th ed.) Citation

Digital University Press. (2004). ASE heating and air conditioning (Unit VII). Pearson/Prentice Hall.

Chicago Style (17th ed.) Citation

Digital University Press. ASE Heating and Air Conditioning (Unit VII). Upper Saddle River, NJ: Pearson/Prentice Hall, 2004.

MLA (8th ed.) Citation

Digital University Press. ASE Heating and Air Conditioning (Unit VII). Pearson/Prentice Hall, 2004.