Unsolved problems in astrophysics 
edited by John N. Bahcall and Ostriker, Jeremiah P.                                            
 - Princeton  Princeton University Press  1997 
 - xiv, 377p. 
<br/><br/><label>ISBN: </label>0-691-01606-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astrophysics
<br/><br/><label>Universal Decimal Class. No.: </label>524  / BAH