Johnson, C. (2006). Heating, ventilation, and air conditioning: A residential and light commercial text and lab book. Thomson.
Lua i Stíl Chicago (17ú heag.)Johnson, Cecil. Heating, Ventilation, and Air Conditioning: A Residential and Light Commercial Text and Lab Book. Clifton Park, NY: Thomson, 2006.
Lua MLA (8ú heag.)Johnson, Cecil. Heating, Ventilation, and Air Conditioning: A Residential and Light Commercial Text and Lab Book. Thomson, 2006.
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