Lem, Stanislaw. <br/><br/>
Kongres futurologiczny ;  Maska / 
 Maska. 
Stanislaw Lem. 
 - Wyd. 1. 
 - Krakow :  Wydawnictwo Literackie,  1983. 
 - 185 p. ;  19 cm. 
 - Dziela / Stanislaw Lem .
 - Lem, Stanislaw.  1982.  Works. .
<br/><br/> Two science fiction tales by Lem. 
<br/><br/><label>ISBN: </label>8308010245 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction, Polish.