000 004220000a22001690004500
245 _aMine environmental engineering vol. II
100 _aSengupta, Mritunjoy
260 _aBoca Raton
_bCRC Press
_c1990
300 _a[xx],264p. : ill.
500 _aIndex included
020 _a0849349583
080 _a622.8
_bS4
650 _aMINE SAFETY
650 _aENVIRONMENTAL ENGINEERING
041 _aEN
942 _cBK
999 _c36218
_d36218