Log interpretation charts / 
Schlumberger. 
 - New York :  Schlumberger,  1977. 
 - 83 p. :  ill. ;  32 cm. 
<br/><br/> Salinan gambarfoto. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil well logging, Electric--Charts, diagrams, etc.