TY  - BOOK
AU  - MCKINSTRY, HUGH EXTON
TI  - MINING GEOLOGY
T2  - 0
U1  - 550 
PY  - 1948///
CY  - NEW YORK-U.S.A.
PB  - PRENTICE HALL
KW  - CIENCIAS PURAS
N1  - ASSEMBLING GEOLOGICAL DATA
ER  -