Ruhen, Olaf. <br/><br/>
Mountains in the clouds / 
Olaf Ruhen. 
 - Horowitz Australian Library ed. 
 - London :  Horwitz,  [1968] 
 - 240 p.  ill. 
<br/><br/><label>Nat. Bib. No.: </label>Aus68-2182 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Papua New Guinea--History.
<br/><br/><label>LC Class. No.: </label>DU740  / .R88 1968 
<br/><br/><label>Dewey Class. No.: </label>995