TY  - BOOK
AU  - Steckley,Robert C.
ED  - United States.
TI  - Blasting tests in a porphyry copper deposit in preparation for in situ extraction
T2  - Report of investigations
PY  - 1975///]
CY  - [Washington]
PB  - U.S. Dept. of the Interior, Bureau of Mines
KW  - Blasting
KW  - Core drilling
ER  -