TY  - BOOK
AU  - Heller,L
AU  - Weiss,A.
ED  - National conference on Clays and Clays Minerals
TI  - Clays and clays minerals: proceedings 
U1  - 553.6106173 
PY  - 1966///-1967
CY  - Jeruselem
PB  - Israel Program Scientific Traslation
KW  - Clay
KW  - Congresses
KW  - Clay minerals
ER  -