Arbuthnott, J. C . Report on the land revenue administration of the Surma valley and hill districts for 1912 - 13 / Reports J. C. Arbuthnott. - 1st ed / - Shillong : Assam Secretariat , 1913. - xix : ill ; 32cm . Subjects--Index Terms: Report - land revenue - Surma valley and hill districts Dewey Class. No.: 336.1205 / Ar 16 Re