Ivan Dmitrievich Lavrov.Small ethnographic material recorded in the village of Poretsky, Alatyrsky district.And a pre -conductiv...

Ivan Dmitrievich Lavrov.Small ethnographic material recorded in the village of Poretsky, Alatyrsky district.And a pre -conductive letter.- 1899. -Agreement No. 24 of 02/12/2016 category 37 manuscripts of the works of members of the Russian Geographical Society and individual documents in the Simbirsk province, case 36..Electronic copy source: PB