Cita APA (7th ed.)

Herman, S. L., & Sparkman, B. L. (2014). Electricity & controls for HVAC/R (7th edition.). Cengage Learning.

Cita Chicago (17th ed.)

Herman, Stephen L., i Bennie L. Sparkman. Electricity & Controls for HVAC/R. 7th edition. Stamford, CT: Cengage Learning, 2014.

Cita MLA (9th ed.)

Herman, Stephen L., i Bennie L. Sparkman. Electricity & Controls for HVAC/R. 7th edition. Cengage Learning, 2014.