000 00302nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
082 _a622.42 J786
100 _aJONES,P.M
245 0 _aMINE VENTILATION
250 _a2
260 _aBoston
_bA.A. Balkema
_c1985
300 _a25X18
942 _cBK
_2DDC
999 _c20512
_d20512