000			00749nam a2200193u 4500
001			00776416
003			PWmBRO
005			20240602101307.0
008			240388
245	0	4	_aThe Impact of water-based drilling mud discharges on the environment : _ban overview.
260			_a[Nairobi?] : _bIndustry & Environment Office, United Nations Environment Programme, _c1985.
300			_avii, 50 p. : _bill.
440	0	0	_aUNEP--Industry & Environment overview series.
650	0	0	_aDrilling muds _xEnvironmental aspects.
650	0	0	_aBoring _xEnvironmental aspects.
650	0	0	_aOil well drilling _xEnvironmental aspects.
710	2	0	_aUnited Nations Environment Programme. _bIndustry & Environment Office.
942			_2ddc _03
999			_c40039 _d40039