Chl.V. Gromov.Observations of periodic phenomena in the kingdom of the animal, made during 1864 in Kozmodemyansk and its environ...

Chl.V. Gromov.Observations of periodic phenomena in the kingdom of the animal, made during 1864 in Kozmodemyansk and its environs.- 1864. -Agreement No. 24 of 02/12/2016 category 14 of the manuscript of the works of members of the Russian Geographical Society and separate documents on the Yekaterinoslav province, case 21..Electronic copy source: PB