TY  - BOOK
AU  - Stout,Wilber
ED  - Geological Survey of Ohio.
TI  - Coal formation clays of Ohio
T2  - Bulletin
AV  - QE151 .A18 no. 26
U1  - 557.66 s 
PY  - 1923///
CY  - Columbus
PB  - Geological Survey of Ohio
KW  - Clay
KW  - Ohio
KW  - Coal
N1  - Includes bibliographical references and index
ER  -