TY  - BOOK
AU  - Harben, Peter W.
AU  - Bates, Robert L.
TI  - Industrial minerals geology and world deposits
SN  - 0947671285
U1  - 553 DDC 22
PY  - 1990///
CY  - London
PB  - Industrial mineral division,metal bulletin plc
KW  - Nonmetallic minerals
KW  - Mines and mineral resources
KW  - Economic geology
ER  -