Kaufman, A.A    <br/><br/>
Principles of the gravitational method /  
A.A.Kaufman [and] R.O.Hansen    
 - Oxford :  Elsevier,   2008    
 - xii;245.p :  ill.;   24cm    
<br/><br/>Includes Index    
<br/><br/><label>ISBN: </label>9780444529930    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gravity   <br/>Gravity--Measurement