Helander, Donald P. <br/><br/>
Fundamentals of formation evaluation / 
Donald P. Helander. 
 - Tulsa :  OGCI Publications,  1983. 
 - 332 p. :  ill. ;  29 cm. 
<br/><br/><label>ISBN: </label>0930972023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil well logging.<br/>Petroleum--Geology.