Ryansky F.N., Seredovsky B.A. An introduction to the historical geography of the Middle Priobye and its Ural-Siberian environs. In Russian /Ryanskiy F.N., Seredovskikh B.A. Vvedenie v istoricheskuyu geografiyu Srednego Priobya i ego uralo-sibirskikh okrestnostey. Nizhnevartovsk NGGU 2007 405 c.Please contact us for details on condition of available copies of the book. SKUalb518658e6663b482d