Piper, C.f., <br/><br/>
Valves / 
C. f. "chuck" piper ; ed., c. buster adkins, jr. 
 - 49 páginas 
 - Mud equipment manual ;  handbook 10 .
<br/><br/> "much of the material in this handbook was originally presented at the iadc valves conference in houston, texas, october 4-6 1977" 
<br/><br/><label>ISBN: </label>0872016226 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Válvulas
<br/><br/><label>LC Class. No.: </label>TS277  / P67