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