Losievsky.Kurmanaevsky caves and their underground lakes, in the Sterlitamak district of the Ufa province.

Losievsky.Kurmanaevsky caves and their underground lakes, in the Sterlitamak district of the Ufa province.- -.-12/06/1849 Agreement No. 24 of 02/12/2016 category 43 manuscript of the works of members of the Russian Geographical Society and individual documents in the Ufa province, case 12..Electronic copy source: PB