00393nam a2200145Ia 4500003000600000005001700006008004100023020001500064040004900079082002100128100002300149245003200172260002300204500002000227NORSU20240806085218.0240220s9999    xx            000 0 und d  a0070393125  aNORSU Dumaguete (Main Campus ll)cNORSU-MCII  a622.381 L99 2001  aLyons,  William C. 0aAir and gas drilling manual  bMcGraw-Hillcc2001  aIncludes index.