Ethnographic information about the people living in the village of Kokrov, Mashchovsky district.

Ethnographic information about the people living in the village of Kokrov, Mashchovsky district.- 1850. -Agreement No. 24 of 02/12/2016 category 15 manuscript of the works of members of the Russian Geographical Society and separate documents in the Kaluga province, case 54..Electronic copy source: PB