TransliterationIzvestiya Imperatorskogo Russkogo Geograficheskogo Obshchestva. Tom XXIX. Vypusk pervyy, vtoroy, tretiy, chetvertyy, pyatyy i shestoy. 1893 g.
In EnglishProceedings of the Imperial Russian Geographical Society. Volume XXIX. Issue 1, 2, 3, 4, 5 and 6. 1893. In Russian
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