http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ad Hoc Meeting on Acidity and Concentration of Sulphate in Rain, May 1969
Ad Hoc Meeting on Acidity and Concentration of Sulfate in Rain (1969 : Paris)
Organisation for Economic Co-operation and Development
At head of title: Environment Directorate.
"Including 'Swedish report on the acidity and the concentration of sulphate in precipitation over Europe'."
"Held in Paris on 5th and 6th June 1969."