TY  - BOOK
AU  - David, Michel, 1945
AU  - 
TI  - Geostatistical Ore Reserve Estamination
U1  - 622. 1: 311 
PY  - 1977///
CY  - Amsterdam
PB  - Elsevier
KW  - Geostatistical Ore Reserve Estamination
N1  -  Bibliog. p. 347- 356
ER  -