Siddons, Michael Powell. <br/><br/>
The development of Welsh heraldry / 
Michael Powell Siddons. 
 - Aberystwyth :  National Library of Wales,  1991-1993. 
 - 3 v. 
<br/><br/><label>ISBN: </label>090715851X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heraldry--History.--Wales