Opik, Ernst J <br/><br/>
The oscillating universe 
Ernst J Opik                                                
 - New York  1960 
 - 144p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and astrophysics thesaurus<br/>Cosmology<br/>Universe
<br/><br/><label>Universal Decimal Class. No.: </label>524.8  / OPI