V. Severin.The state of the folk song and rites in the village of Navalitsy of the Vetrinsky volost, the Vitebsk province.

V. Severin.The state of the folk song and rites in the village of Navalitsy of the Vetrinsky volost, the Vitebsk province.- 1911. -Agreement No. 24 of 02/12/2016 category 5. manuscripts of the works of members of the Russian Geographical Society and separate documents on the Vitebsk province, case 12..Electronic copy source: PB