Ivan Yefgrafovich Razgildeev (1811–1864) was a Russian geologist, mineralogist, and mining engineer, who worked as an administrator in several of the katorga regimes established in the Trans-Baikal region of the Russian Empire.
Ivan Yefgrafovich Razgildeev (1811–1864) was a Russian geologist, mineralogist, and mining engineer, who worked as an administrator in several of the katorga regimes established in the Trans-Baikal region of the Russian Empire. (en)
Ivan Yefgrafovich Razgildeev (1811–1864) was a Russian geologist, mineralogist, and mining engineer, who worked as an administrator in several of the katorga regimes established in the Trans-Baikal region of the Russian Empire. (en)