000 00307nam a2200121Ia 4500
008 160710s1993 xx 000 0 und d
082 _a622.42 PHE
100 _aMEPHERSON,M.J.
245 _aSUBSERFACE VENTILATION AND ENVIRONMENTAL ENGG.
260 _bCHAPMAN HALL
_c1993
300 _a905
942 _2ddc
_cB
999 _c63204
_d63204