Routes from Russian territory in Central Asia towards Afghanistan and India. Section 1. The Pamir line of advance. By Lt W R Robertson, Intelligence Branch Simla: Intelligence Branch, Quarter Master General's Dept India, 1893
Draft of a proposed Commercial Treaty between Her Majesty the Queen of Great Britain and Ireland, and the Shah of Persia Printed for the use of the Foreign Office, 17 Jan 1857
Part I. Short military report on the Ferghana Province, Kashgar, the Pamirs, and Upper Oxus Afghan Provinces, being the country traversed by the routes in Part II