TransliterationN. Ivashintsov. Gidrograficheskoe issledovanie Kaspiyskogo morya, proizvedennoe pod nachalstvom kap. 1-go ranga N. Ivashintsova
In EnglishN. Ivashintsov. Hydrographic study of the Caspian Sea, conducted under the supervision of Capt. 1st Rank N. Ivashintsov In Russian (ask us if in doubt)
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