India. Native States. Approximate area, population, revenue, and military force O T Burne [?and C Grey], Political and Secret Dept, India Office, 1 May 1875
[Foreign Office Print. (Asia. Confidential. Section No 106). Memoranda by Lord Hartington and Lord Tenterden on Anglo-Russian negotiations concerning the Turkoman tribes, 15 and 20 Feb 1882]