00329cam a2200121ua 4500020002000000041001000020082002200030100002500052245006400077260004900141300001200190504000500202  a0 87201  568  8  aengh  a028.71621bCOL/MU  aCollier, Samuel L  .  aMud pump hand book / cSamuel L Collier.hTextual Documents  aLondon : bGulf Publishing Company , c1983.  a244 ; .  a