Schlumberger. <br/><br/>
Log interpretation principles / 
Schlumberger. 
 - New York :  Schlumberger,  1972. 
 - 109 p. :  ill. ;  30 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geophysical well logging.