Notes on a trip to the Black Sea coast of the Caucasus in the fall of 1907

Yermolov, Alexey Sergeevich (1847-1917).Notes on a trip to the Black Sea coast of the Caucasus in the fall of 1907 / A.S.Ermolov.- St. Petersburg: [Type.V.F.Kirschbaum], 1908. - [4], 109 p.;27. -.Electronic Source: PB