ISBN 0813723132 books & textbook
Ordovician K-Bentonites of Eastern North America (Special Paper 313, Geological Society of America)
Kolata, Dennis R. Huff, Warren D. Bergstrom, Stig M.
The Geological Society of America /1996-01-01 Paperback / 84 Pages
isbn-10: 0813723132 / isbn-13: 9780813723136
