000
00304nam a2200121Ia 4500
008
170101s2017 xx 000 0 und d
082
_a
622 C27A
100
_a
Central Mining Research Station
245
0
_a
Annual report
650
_a
MINING ENGINEERING
653
_a
MINING ENGINEERING
942
_2
ddc
_c
B
999
_c
51594
_d
51594