DI.Ustrov.Folk motifs (from the ritual songs of the northern part of the Kinesham district of the Kostroma province).

DI.Ustrov.Folk motifs (from the ritual songs of the northern part of the Kinesham district of the Kostroma province).- 1903. -Agreement No. 24 of 02/12/2016 category 18 manuscript of the works of members of the Russian Geographical Society and separate documents in the Kostroma province, case 30..Electronic copy source: PB