Problem book in relativity and gravitation / 
Alan P. Lightman ... et al. 
 - Princeton, N.J. :  Princeton University Press,1975. 
 - xiv, 599 p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relativity (Physics)--Problems, exercises, etc.<br/>Gravitation--Problems, exercises, etc.<br/>Astrophysics--Problems, exercises, etc.