http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Fifteenth Symposium on Rock Mechanics, held at Custer State Park, South Dakota, September 17-19, 1973
Symposium on Rock Mechanics 1973 : Custer State Park, S.D.)
South Dakota School of Mines and Technology
U.S. National Committee for Rock Mechanics
Sponsored by the U.S. National Committee for Rock Mechanics of the National Academy of Sciences-National Academy of Engineering and South Dakota School of Mines and Technology.