http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Lower paleozoic carbonate rocks in Maryland and Pennsylvania
American Association of Petroleum Geologists
Society of Economic Paleontologists and Mineralogists
"A field trip of the 1960 annual convention: The American Association of Petroleum Geologists, The Society of Economic Paleontologists and Mineralogists, Atlantic City, New Jersey."
Johns Hopkins University studies in geology ; no. 18, guidebook 3