000 00639nam a22001337a 4500
008 140202b ck ||||| |||| 00| 0 spa d
090 _a8033137031
245 1 0 _aPetroleum engineer international
264 _aDallas : Energy Publications, 1983
362 1 _a(Sep. 1983) ; 40 p.
505 0 0 _aDrilling outlook -- Drilling contractors with rotary land rigs in U.S. -- U.S. contract rotary land drilling
505 0 0 _arigs -- Drilling contractors with rotary land rigs in Canada -- Canadian contract rotary land drilling rigs
505 0 0 _ainternational rotary -- Land drilling contractors international contract -- Rotary land drilling rigs.
999 _c18504
_d18504