2012 International Mechanical Code (International Code Council Series)
Modern Refrigeration and Air Conditioning (Modern Refridgeration and Air Conditioning)
NFPA 54: National Fuel Gas Code, 2012 Edition
2015 International Mechanical Code
NFPA 58: Liquefied Petroleum Gas Code, 2014 Edition by NFPA (2014-05-04)
Modern Refrigeration and Air Conditioning
ACCA Duct Calculation Slide Rule
HVAC Duct Construction Standards-Metal & Flexible, 3rd Edition
NFPA 54:NATIONAL FUEL GAS CODE 2015
Commercial Load Calculation for Small Commercial Buildings, Manual N®