TY  - BOOK
AU  - Erickson,A.J.
ED  - Society for Mining Metallurgy and Exploration of AIME.
TI  - Applied mining geology: general studies problems of sampling and grade control Ore reserve estimation 
SN  - 0873351096
U1  - 622.0155 
PY  - 1992///
CY  - Littleton, Colo.
PB  - Society of Mining , Metallurgy and Exploration, Inc.
KW  - Mining geology
KW  - United States
ER  -