Map from the Linguistic Survey of India (1903), Vol. III Tibeto-Burman Family; Part II Specimens of the Bodo, Naga, and Kachin Groups.
<p>Compiled and Edited by G.A. Grierson, C.I.E, PH.D., D.Litt., I.C.S.
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Office of the Superintendant, Government Printing, India 1903
1903
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Linguistic Survey of India, Volume III, Tibeto-Burman Family, Part II, "Specimens of the Bodo, Nāgā, and Kachin groups"