Ritchie, Anna,  1943- <br/><br/>
The ancient monuments of Orkney / 
Anna Ritchie and Graham Ritchie ; edited by Patrick Ashmore. 
 - Edinburgh :  HMSO,  1995. 
 - 76p. 
 - Historic Scotland .
 - Historic Scotland .
<br/><br/><label>ISBN: </label>0114957347 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Historic sites--Guidebooks.--Scotland--Orkney<br/>Monuments--Guidebooks.--Scotland--Orkney
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Orkney Islands (Scotland)--Antiquities.<br/>Orkney Islands (Scotland)--Description and travel--Guide-books.