Herman, S. L., & Sparkman, B. L. (1991). Electricity and controls for heating, ventilating, and air conditioning (2nd ed.). Delmar.
Citace podle Chicago (17th ed.)Herman, Stephen L., a Bennie L. Sparkman. Electricity and Controls for Heating, Ventilating, and Air Conditioning. 2nd ed. Albany, N.Y: Delmar, 1991.
Citace podle MLA (9th ed.)Herman, Stephen L., a Bennie L. Sparkman. Electricity and Controls for Heating, Ventilating, and Air Conditioning. 2nd ed. Delmar, 1991.
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