000 00689nam a2200217 4500
005 20260608203146.0
008 260224s1985 dcu
082 _aCaja archivo 8
210 _aBull D20
245 0 0 _aBulletin on directional drilling survey calculation methods and terminology
_bAPI bulletin D20 (BUL D20)
246 1 _aAPI D20
260 _aWashington
_bAmerican Petroleum Institute, API
_c1985
270 _a22/07/2016 ; 16/01/03
300 _a31 p.
773 _g
942 _cNORMA
110 2 _aAmerican Petroleum Institute, API
_9105
650 0 _aNormas API
_9109
650 0 _aNormalización
_9106
999 _c143141
_d143141