Black holes =  Les Astres Occlus / 
 Les Astres Occlus 
Ed. by C. DeWitt, B. S. DeWitt. 
 - New York :  Gordon and Breach Science Publishers,  1973. 
 - xii, 552 p. :  ill. ;  24 cm. 
<br/><br/> Based on lectures given at the 23rd session of the Summer School of Les Houches, 1972. 
<br/><br/>Includes bibliogr. references. 
<br/><br/><br/>Preface in English and French 
<br/><br/><label>ISBN: </label>0677156103 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Black holes (Astronomy)--Congresses.