TY  - BOOK
AU  - H VAN OLPHEN
TI  - CLAY COLLOID CHEMISTRY
U1  - GN541.34513QL7I 
PY  - 1963///
CY  - LONDON
PB  - INTERSCIENCE PUBLISHERS
KW  - CLAY COLLOID CHEMISTRY
N1  - MODERN BOOK HOUSE
ER  -