000			00986n a2200229 4500
001			00928429
003			PWmBRO
005			20240602102142.0
008			881013s1987 coua b 10110 eng
020			_a0873350707
090			_b622.42/M664p
111	2	0	_aMine Ventilation Symposium _n(3rd : _d1987 : _cPennsylvania State University)
245	1	0	_aProceedings of the 3rd Mine Ventilation Symposium : _bOctober 12-14, 1987, the Pennsylvania State University, University Park, Pennsylvania / _cJan M. Mutmansky, symposium chairman and proceedings editor ; sponsored by Underground Ventilation Committee of SME.
260	0		_aLittleton, Colo. : _bSociety of Mining Engineers, _c1987.
300			_ax, 630 p. : _bill.
650		0	_aMine ventilation _xCongresses.
700	1	0	_aMutmansky, Jan M.
710	2	0	_aSociety of Mining Engineers of AIME. _bUnderground Ventilation Committee.
740	0	1	_aProceedings of the Third Mine Ventilation Symposium.
942			_2ddc
994	0	1	_a077303
999			_c54386 _d54386