http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Papers presented at the Symposium on Air Pollution Control
Part I, Particulate Emissions, at the semiannual meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, January 23-27, 1972, New Orleans, Louisiana
Symposium on Air Pollution Control (1972 : New Orleans)
American Society of Heating, Refrigerating and Air-Conditioning Engineers