TY  - BOOK
AU  - Pulsifer,Harry Bridgman
TI  - Mechanical ore sampling in Montana,
AV  - TN560 .P8
PY  - 1920///
CY  - Butte, Mont.
PB  - State School of Mines
KW  - Ores
KW  - Sampling and estimation
N1  - "Important publications on sampling:" p. 69-70
ER  -