http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Seaford, Delaware--Maryland--New Jersey, 1984
1:100 000-scale metric topographic--bathymetric map : 30 x 60 minute series (topographic--bathymetric)
produced by the United States Geological Survey and the National Ocean Service.
Relief shown by contours and spot heights.
Depths shown by isolines and bathymetric tints.
Includes location map and index to adjoining maps.
Includes hydrographic survey index and information, and depth gradient diagram.
Scale 1:100,000. 1 cm. on the map represents 1 km. on the ground ;