http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Canada-Ontario Agreement on Great Lakes Water Quality
Sludge Handling and Disposal Seminar (1974 : Toronto, Ont.)
Sludge Handling and Disposal Seminar held in Toronto, Ontario, September 18-19, 1974.
Under the auspices of the Ministry of the Environment.
Conference proceedings (Research Program for the Abatement of Municipal Pollution (Canada)) ; no. 2