TY  - DATA
AU  - Hustrulid, William.
TI  - Blasting principles for open pit mining: General design concepts   
SN  - 9789054104582
U1  - 622.23 22
PY  - 1999///
CY  - New York
PB  - CRC press
KW  - Blasting Mining
N1  - Includes bibliographical references and index
ER  -