http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Stratigraphic framework of the Paleocene coal beds in the Broadus 30ʹ x 60ʹ quadrangle, Powder River Basin, Montana-Wyoming
1 map and 1 data sheet : color ; 55 x 61 cm., sheets 101 x 142 cm. and sheet 81 x 112 cm., folded in envelope 30 x 24 cm.
Department of the Interior, U.S. Geological Survey ; by Marguerite W. McLellan and Laura R.H. Biewick.
Relief shown by contours and spot heights.
Includes text, bibliography, columnar stratigraphic sections, 2 tables, and ancillary map of northern part of Powder River Basin showing coal fields described in previous publications.
Scale 1:100,000. 1 cm. on the map represents 1 km. on the ground