000 00449nab a2200169 4500
005 20260520000934.0
008 260224s2009 xxu
245 0 0 _aRotary steerables: cost, reliability still key
260 _a
_b
_cmayo 2009
270 _a26/07/2010 ; 26/07/2010
300 _a9 p. ; 18-26
581 _a5
773 0 _tDrilling Contractor
_g82
942 _cARTICULO
100 1 _aHsieh, Linda
_938393
999 _c175395
_d175395