http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Air-conditioning and refrigeration equipment, including warm air furnaces
Air-cond. refrig. equip., incl. warm air furn
Air conditioning and refrigeration equipment, including warm air furnaces
Social and Economic Statistics Administration.
Previously classed: C 56.216:, C 56.216:MA-35 M.
Current industrial reports. MA-35M, Air-conditioning and refrigeration equipment
Current industrial reports. MA35M, Refrigeration, air-conditioning and warm air heating equipment