http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
v. 1. Heating systems, furnaces, and boilers -- v. 2. Heating system components, gas and oil burners, and automatic controls -- v. 3. Air conditioning, heat pumps, and distribution systems.
Revised edition of: Heating, ventilating, and air conditioning library.
Includes bibliographical references and index.
Heating, ventilating, and air conditioning library