Penrose, Roger <br/><br/>
Roger Penrose: collected works. volume 2: 1968-1975 

 - Oxford :   Oxford University Press,  2010. 
 - xxii, 935 p.  ill.  25 cm. 
 - Oxford science publications .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780199219377 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Physics<br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>510  / PEN