A.N.Zyryanov.A few words about the mounds in the Shadrinsky district.Signed: p.Ivanishchevskoye.

A.N.Zyryanov.A few words about the mounds in the Shadrinsky district.Signed: p.Ivanishchevskoye.- 1856. -Agreement No. 24 of 02/12/2016 category 29 of the manuscript of the works of members of the Russian Geographical Society and separate documents in the Perm province, case 74..Electronic copy source: PB