TY  - BOOK
AU  - Velde, B.
TI  - Clay minerals: a physico-chemical explanation of their occurrence
T2  - Developments in Sedimentology, 40
U1  - 553.61:54.1 M5 
PY  - 1985///
CY  - Amsterdam
PB  - Elsevier
KW  - B. Velde
KW  - Sedimentology,Clay
ER  -