000
00300nam a2200121Ia 4500
008
190711s9999 xx 000 0 und d
082
_a
622.33 D229
100
_a
DAS,S.K
245
0
_a
MODERN COAL MINING TECHNOLOGY
260
_a
DHANBAD
_b
LOVELY PRAKASHAN
_c
1994
300
_a
25X19
942
_c
BK
_2
DDC
999
_c
23263
_d
23263