Wymer, Norman,  <br/><br/>
The citadel 

 - ix, 128 pages :   illustrations ;   20 cm 
<br/><br/> Level 5 
<br/><br/><label>ISBN: </label>0582419263 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers - Fiction
<br/><br/><label>Dewey Class. No.: </label>428.6