Topology  : proceedings of a conference 
/ organized by bolyai janos mathematical society; ed. by A.Coaszar 
. - New york  : north Holland publishing company, 1980
. - 1260 p.  ; 24 cm. 
 - Colloquid mathematica societatis janos bolyai  23  01393383 .
<br/><br/>bibliogr 
<br/><br/><label>ISBN: </label>9638021306 
<br/><br/><label>Source: </label> don 
<br/><br/><label>Universal Decimal Class. No.: </label>513.83.