Schmidt, Peter,  1944- <br/><br/>
Zasada swiatla i ciemnosci / 
Peter Schmidt : tlumaczyl Wawrzyniec Sawicki. 
 - Wyd. 1. 
 - Bydgoszcz :  Wydawnictwo "Pomorze",  c1990. 
 - 249 p. ;  18 cm. 
<br/><br/> Translation of: Das prinzip von hell und dunkel. 
<br/><br/> Polish translation of a German science fiction thriller. 
<br/><br/><label>ISBN: </label>8370031293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction, German--Translations into Polish.