The Reinhardt Thiessen coal thin-section slide collection of the U.S. Geological Survey : catalog and notes / by James M. Schopf and Orrin G. Oftedahl.
Publication Info.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1976.
Washington : United States Government Printing Office
Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/).
"United States Department of the Interior, Geological Survey"--P. [ii].
"A guide to the collection of more than 19,000 slides from 682 localities within and outside the United States, and a bibliography of Reinhardt Thiessen."