Hammond, Peter,  1937- <br/><br/>
Royal fortress :  the Tower of London through nine centuries / 
Peter Hammond ; [for the] Department of the Environment. 
 - London :  H.M.S.O.,  1978. 
 - [1],62p. 
<br/><br/><label>ISBN: </label>0116706783 (sd) 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Tower of London--History.