TY  - BOOK
AU  - Olphen, H. Van
AU  - Fripiat, J.J.
TI  - Data handbook for clay materials and other non metallic minerals
SN  - 008022850X
PY  - 1979///
CY  - Oxford
PB  - Pergamon
KW  - NON METALLIC MINERALS - DATA HANDBOOK
ER  -