http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
xxi, 888 pages : illustrations (some color) ; 29 cm.
Includes bibliographical references (pages 821-858) and index.
Special publication (Geological Survey of Pennsylvania) ; 1
0818202270 (hardcover : acid-free paper)