Robertson, H. P.  1903-1961. <br/><br/>
Relativity and cosmology 
[by] H. P. Robertson [and] Thomas W. Noonan. 
 - Philadelphia,  Saunders,  1968. 
 - xxxiii, 456 p.  illus.  25 cm. 
<br/><br/> Based on Robertson's notes for his relativity course at Caltech from 1949 to 1961. 
<br/><br/><label>LCCN: </label>68023690  
<br/><br/><label>LC Class. No.: </label>QC6 .R54 1968  / .R54 1968 
<br/><br/><label>Dewey Class. No.: </label>530.11