Cita APA (7th ed.)

Egg, J., & Howard, B. C. (2011). Geothermal HVAC: Green heating and cooling (First edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Egg, Jay, i Brian C. Howard. Geothermal HVAC: Green Heating and Cooling. First edition. New York: McGraw-Hill, 2011.

Cita MLA (9th ed.)

Egg, Jay, i Brian C. Howard. Geothermal HVAC: Green Heating and Cooling. First edition. McGraw-Hill, 2011.