K. S. Ryabinsky.Materials for the ethnography of the street life of children collected in the mountains.Laishev.

K. S. Ryabinsky.Materials for the ethnography of the street life of children collected in the mountains.Laishev.- 1883. -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 40..Electronic copy source: PB