Report on the manuscripts of Lord Polwarth,
preserved at Mertoun house, Berwickshire. ... Presented to Parliament by command of His majesty.
APA Citation
Great Britain. Royal Commission on Historical Manuscripts. (191161). Report on the manuscripts of Lord Polwarth: preserved at Mertoun house, Berwickshire. ... Presented to Parliament by command of His majesty. London: Printed under the authority of H.M.S.O. by the Hereford times limited, [etc., etc.].
MLA Citation
Great Britain. Royal Commission on Historical Manuscripts. Report On the Manuscripts of Lord Polwarth: Preserved At Mertoun House, Berwickshire. ... Presented to Parliament by Command of His Majesty. London: Printed under the authority of H.M.S.O. by the Hereford times limited, [etc., etc.], 191161.
Warning: These citations may not always be complete (especially for serials).