International Astronomical Union Symposium  Problems of extra-galactic research 
c G.C.McVitte 
 - New York, London  The Macmillam Comp.  1962 
 - v. 
 - International Astronomical Union Symposium .
<br/><br/> International Astronomical Union Symposium  v.15(1961,450 p. tab.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astrophysics-Congresses
<br/><br/><label>Dewey Class. No.: </label>A9I69f52