TY  - BOOK
AU  - ESOUSA,L.
AU  - GROSSMANN,N.F.
TI  - SAFETY AND ENIVRONMENT ISSUES IN ROCK ENGINEERING / 
U1  - 624.15132 
PY  - 1993///
CY  - [S.N] : 
PB  - A.A.BALKEMA,ROTTERDAM ، 
KW  - التحليل الرياضى
KW  - ENVIRONMENT
KW  - ROCKS
ER  -