000 00311nam a22001097a 4500
008 131227b xxu||||| |||| 00| 0 eng d
020 _a0412353008
050 _a622.42
100 _aMcpherson Malcolm J
245 _aSubsurface ventilation and environmental engineering
260 _aNew York
_bChapman &Hall
_c1993
999 _c328537
_d328537