APA

Howell R. H., Coad W. J. & Sauer H. J. (2009). Principles of heating, ventilating, and air conditioning: a textbook with design data based on the 2009 ASHRAE Handbook of fundamentals. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.

Chicago

Howell Ronald H, Coad William J and Sauer Harry J. 2009. Principles of heating, ventilating, and air conditioning: a textbook with design data based on the 2009 ASHRAE Handbook of fundamentals. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.

Harvard

Howell R. H., Coad W. J. and Sauer H. J. (2009). Principles of heating, ventilating, and air conditioning: a textbook with design data based on the 2009 ASHRAE Handbook of fundamentals. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers.

MLA

Howell Ronald H, Coad William J and Sauer Harry J. Principles of heating, ventilating, and air conditioning: a textbook with design data based on the 2009 ASHRAE Handbook of fundamentals. Atlanta, GA: American Society of Heating, Refrigerating and Air-Conditioning Engineers. 2009.