TY  - BOOK
AU  - Swineford,Ada
ED  - National Conference on Clays and Clays Minerals
TI  - Clays and Clays Minerals: proceedings 
U1  - 553.6106173 
PY  - 1960///
CY  - London
PB  - Pergamon Press
KW  - Clay
KW  - Clay minerals
KW  - Natural gas
N1  - Includes index
ER  -