http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Late Cayugan (upper Silurian) and Helderbergian (lower Devonian) stratrigraphy in New York
University of the State of New York, State Education Dept.
157 p. : illus., fold. map, diagrs. ; 23 cm.