Sheffield, Riley,  1931 <br/><br/>
Floating drilling, equipment and its use / 
Riley Sheffield 
 - Book Division, Houston, Tex. :  Gulf Publishing Co,  1980 
 - ix, 257 p.  :  ill.  ;  24 cm. 
 - Practical drilling technology ;  v. 2 .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0872012891  19.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil well drilling, Submarine<br/>Drilling platforms