00770cam a2200181 4500009213316MiAaHDL20101116000000.0m d cr bn ---auaua850726s1957 txua s000 0 eng dsdr-coo615669(OCoLC)2016702NICNICUniversity of Texas.Petroleum Extension Service.A primer of oil well drilling.Issued by Petroleum Extension service, University of Texas, Division of Extension, Austin and American Association of Oilwell drilling Contractors, Dallas, with the copperation of Texas Education Agency, Trade and Industrial Service, Austin.2d ed.[Austin,1957]109 p.illus.28 cm.Mode of access: Internet.Oil well drillingAmerican Association of Oil well Drilling Contractors.00921331620100824165035.020101116000000.020120814072540.02024-06-25T17:37:05Z2024-06-25T17:30:02ZSDR-COOUNKNOWNloader.pl-001-001BKsdr-coo615669cooSDRCOOcoo.31924004653311COO615669COOCOO20240625googlecoo.319240046533111957pdren