000			00833pam a2200277 a 4500
001			00109576
003			PWmBRO
005			20240602103122.0
008			920218s1993 enka b 001 0 eng
010			_a92006185
020			_a0412353008
082	0	0	_a622/.42 _220
100	1		_aMcPherson, Malcolm J.
245	1	0	_aSubsurface ventilation and environmental engineering / _cMalcolm J. McPherson.
260			_aLondon : _bChapman & Hall, _c1993.
300			_axvi, 905 p. : _bill.
504			_aIncludes bibliographical references and index.
650		0	_aMine ventilation.
650		0	_aExplosions.
650		0	_aUnderground areas _xFires and fire prevention.
650		0	_aUnderground areas _xHeating and ventilation.
650		0	_aMine explosions.
650		0	_aMine fires.
650		0	_aAir _xPollution
942			_2ddc
999			_c70647 _d70647