Columbia subject headings:
Admirals--Russia--Biography.
Grigorovich, I. K. (Ivan Konstantinovich), 1853-1930.
Russia--History, Naval.
Russia--History--1801-1917.
Harvard subject headings:
Admirals--Russia--Biography
Grigorovich, I. K. (Ivan Konstantinovich), 1853-1930.
Russia--History, Naval.
Russia--History--1801-1917.
Princeton subject headings:
Admirals--Russia--Biography.
Grigorovich, I. K. (Ivan Konstantinovich), 1853-1930.
Russia--History, Naval.
Russia--History--1801-1917.