K. Ryabinsky.Spiritual poems recorded in the mountains.Laishev.Permissive letter of November 7, 1885 from the mountains.Laishev.

K. Ryabinsky.Spiritual poems recorded in the mountains.Laishev.Permissive letter of November 7, 1885 from the mountains.Laishev.- -.-Agreement No. 24 of 02/12/2016 category 14 of the manuscript of the works of members of the Russian Geographical Society and separate documents on the Yekaterinoslav province, case 39..Electronic copy source: PB