TY  - BOOK
AU  - Bradley,W.F.
ED  - National conference on Clays and Clays Minerals
TI  - Clays and clays minerals: proceedings 
U1  - 553.6106173 
PY  - 1963///
CY  - London
PB  - Pergame Press
KW  - Clay
KW  - Congresses
KW  - Clay minerals
KW  - Natural gas
N1  - Includes index
ER  -