Columbia subject headings:
Metallurgy--Russia--History.
Peter I, Emperor of Russia, 1672-1725.
Tulskiĭ zavod Demidovykh.
Harvard subject headings:
Metallurgy--Russia--History.
Peter I, Emperor of Russia, 1672-1725
Tulskiĭ zavod Demidovykh.
Princeton subject headings:
Metallurgy--Russia--History.
Peter I, Emperor of Russia, 1672-1725.
Tulskiĭ zavod Demidovykh.