000
00294nam a2200121Ia 4500
008
190711s9999 xx 000 0 und d
082
_a
622.26 I59
100
_a
INSTITUTION OF MINING AND METALLURGY
245
0
_a
TUNNELLING 88
260
_a
LONDON
_b
I.M.M
300
_a
30X21
942
_c
BK
_2
DDC
999
_c
21833
_d
21833