Pohl, Frederik. <br/><br/>
Beyond the blue event Horizon/ 
Frederik Pohl. 
 - New York:  Ballantine Books,  1990. 
 - 309 p. ;  20 cm. 
<br/><br/><label>ISBN: </label>0345350464 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science fiction<br/>Bilim kurgu
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Science fiction.
<br/><br/><label>LC Class. No.: </label>PS3566.O36 
<br/><br/><label>Dewey Class. No.: </label>813/.5/4