En
RuYakutsk region
Yakutsk region
Route geological map of the southern part of the Olekminsko-Vitim mountainous country // Izvestiya of the East Siberian Division of the Russian Geographical Society. T. 22, No. 2/3 (1891)
Russian Geographical Society. East-Siberian department
Izvestiya of the East Siberian Division of the Russian Geographical Society. Route geological map of the southern part of Olekminsko-Vitim mountainous country. Location: Irkutsk, 1870-.
1891
Иркутская ОГУНБ