TY  - BOOK
T1  - Revised grade and tonnage model of carbonatite deposits
DA  - 1998.
CY  - Menlo Park, CA :
AU  - Singer, D. A.
VL  - 98-235
CN  - I 19.76:
PB  - U.S. Dept. of the Interior, U.S. Geological Survey,
PP  - Menlo Park, CA :
PY  - 1998.
N1  - Cover title.
N1  - Shipping list no.: 99-0353-M.
ID  - 216777
KW  - Carbonatites.
TI  - Revised grade and tonnage model of carbonatite deposits
ER  -