Lasswitz, Kurd <br/><br/>
Two planets.  Auf zwei Planeten. 
A novel by Kurd Lasswitz, abridged by Erich Lasswitz. Translated by Hans H. Rudnick. Afterword by Mark R. Hillegas. 
 - Carbondale  Southern Illinois University Press  [1971] 
 - vi, 405 p.  23 cm. 
<br/><br/><label>ISBN: </label>0809305089 
<br/><br/><label>LCCN: </label>78156776 //r82 
<br/><br/><label>LC Class. No.: </label>PZ3.L3385  PT2390.L9  / Tw 
<br/><br/><label>Dewey Class. No.: </label>833/.8