TY  - BOOK
AU  - Chernigovskii,A.A.
TI  - Application of directional blasting in mining and civil engineering
SN  - 8120500180 :
AV  - TN279 .C46513 1985
U1  - 622/.23 
PY  - 1986///
CY  - Rotterdam
PB  - A.A. Balkema
KW  - Blasting
KW  - Blast effect
ER  -