On the Trigonometrical Survey and Physical Configuration of the Valley of Kashmir
Canning, William H. Purdon · Proceedings of the Royal Geographical Society of London · 1859
Canning, William H. Purdon, On the Trigonometrical Survey and Physical Configuration of the Valley of Kashmir, Proceedings of the Royal Geographical Society of London, Vol. 4, No. 1 (1859 - 1860), pp. 31-33