TY  - BOOK
AU  - PARKS, ROLAND D.
TI  - EXAMINATION AND VALUATION OF MINERAL PROPERTY
T2  - 0
U1  - 350.8232 
PY  - 1949///
CY  - MASSACHUSETTS-U.S.A.
PB  - ADDISON-WESLEY PUBLISHING
KW  - CIENCIAS SOCIALES
N1  - MINE-PROPERTY/THEORIES-TABLES
ER  -