TY  - BOOK
AU  - Ries,Heinrich
AU  - Bayley,William Shirley
TI  - High-grade clays of the eastern United States,: with notes on some western clays,
T2  - U.S. Geological survey.  Bulletin 708
AV  - QE75 .B9 no. 708
PY  - 1922///
CY  - Washington
PB  - Govt. print. off.
KW  - Clay
KW  - United States
N1  - Bibliographical foot-notes
ER  -