http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bedrock geologic map of the Grafton quadrangle, Worcester County, Massachusetts
1 online resource (1 map) : color + 1 pamphlet (iv, 39 pages).
Gregory J. Walsh, John N. Aleinikoff, and Michael J. Dorais ; prepared in cooperation with the Commonwealth of Massachusetts, Massachusetts Geological Survey.
Relief shown by contours and spot heights.
Title from title screen (viewed on Mar. 13, 2012).
Includes location map, index map, lithologic column, col. ill., 1 table, and 3 cross-sections.
Includes bibliographical references (pages 35-39 of pamphlet).