http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
a symposium sponsored by the Alberta Society of Petroleum Geologists and the Saskatchewan Society of Petroleum Geologists
Saskatchewan Society of Petroleum Geologists
x, 521 pages : illustrations, portrait, maps. ; 25 cm.
At head of title: Ralph Leslie Rutherford Memorial volume.