http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Structural geology of South Mountain and Appalachians in Maryland
with a section on geology and quarrying, Warm Spring Ridge, West Virginia
85 pages : illustrations, maps., diagrams ; 28 cm.
by T. D. Murphy. Prepared for the field trip of the Pennsylvania Field Conference, May 1958.
Johns Hopkins University studies in geology ; no. 17