Gansu coverage index
Mongolia, the Tangut country, and the solitudes of northern Tibet, Vol. 1
Przhewalskii, Nikolai
Two-volume report of Colonel Przhewalskii’s expedition in Inner Asia, sponsored by the Geographical Society of Russia.
subject: expeditions, geography
Mongolia, the Tangut country, and the solitudes of northern Tibet, Vol. 2
Przhewalskii, Nikolai
subject: expeditions, geography