Confrontation of cosmological theories with observational data  proceedings of the IAU symposium (Copernicus symposium) no. 63, held in Cracow, Poland, September 10-12, 1973 
edited by M.S. Longair 
 - Dordrecht  D. Reidel Publishing  1974 
 - xi, 382p. 
 - IAU Symposium; no. 63 .
<br/><br/><label>ISBN: </label>90-277-0456-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and Astrophysics Thesaurus<br/>Cosmology<br/>Observational cosmology<br/>Observing techniques
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / IAU-S63