NEWMAN, William L. Distribution of elements in sedimentary rocks of the Colorado plateau : a preliminary report / by William L. Newman. -- Washington : United States Government Printing Office, 1962 - P. 337-445 + map. -- (Geological Survey Bulletin ; 1107-F). Subjects--Topical Terms: ColoradoRocas sedimentarias Universal Decimal Class. No.: 552.14(788)