Twelfth report with an inventory of the ancient monuments of Orkney & Shetland.  Vol. 2,  Inventory of Orkney. 

 - Edinburgh :  [H.M.S.O.],  1946. 
 - xvi, 383p. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Orkney Islands (Scotland)--Antiquities.<br/>Orkney Islands (Scotland)--Description.<br/>Orkney Islands (Scotland)--History.