Witten, Louis., ed. <br/><br/>
GRAVITATION: an introduction to current research 

 - New York  John Wiley  1962 
 - x, 481 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gravitation
<br/><br/><label>Dewey Class. No.: </label>531.5  / GRA