http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the fourth North American Forest Soils Conference held at Laval University, Quebec in August, 1973
North American Forest Soils Conference 1973 : Laval University, Quebec)
Sponsored by the Society of American Foresters, the Canadian Institute of Forestry, the Soil Science Society of America, and the Canadian Soil Science Society.