000			00621nam a2200205u 4500
001			00877468
003			PWmBRO
008			900711 1987 at a 0 eng
010			_a90044069
020			_a0949279188
090			_b621.9/52/O61
245	0	0	_aOpen cut blast hole drilling / _cThe Australian Drilling Industry Training Committee Limited.
260			_aN.S.W., Australia : _bAustralian Drilling Industry Training Committee Limited, _c1987.
300			_a218 p. : _bill.
650		0	_aDrilling and boring
650		0	_aElectric drills.
650		0	_aOil well drilling.
942			_2ddc
994	0	1	_a072638
999			_c56977 _d56977