Builth Wells / Llanfair-ym-Muallt, Painscastle and Talgarth / Castell Paen a Thalgarth; sheet 188; 1 :  25,000/    [Map]. 

 -  Ordnance Survey,  2005. 
 - Explorer .
<br/><br/><label>ISBN: </label>0319236358 9780319236352 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Builth Wells - Maps<br/>Llanfair-ym-Muallt - Maps<br/>Painscastle - Maps<br/>Talgarth - Maps