Columbia subject headings:
Admirals--Russia--Biography.
Naval art and science--Russia--History.
Nepenin, Adrian Ivanovich, 1871-1917.
Russia. Voennyĭ flot--History.
Harvard subject headings:
Admirals--Russia--Biography
Nepenin, Adrian Ivanovich, 1871-1917.
Russia--History, Naval.
Russia. Voennyĭ flot. Baltiĭskiĭ flot--Biography.
Princeton subject headings: