Columbia subject headings:
Gapon, Georgiĭ Apollonovich, 1870-1906.
Russia--History--Revolution, 1905-1907.
Rutenberg, Pinhas, 1879-1942.
Harvard subject headings:
Gapon, Georgiĭ Apollonovich, 1870-1906
Russia--History--Revolution, 1905-1907.
Rutenberg, Pinhas, 1879-1942.
Princeton subject headings:
Gapon, Georgiĭ Apollonovich, 1870-1906.
Russia--History--Revolution, 1905-1907.
Rutenberg, Pinhas, 1879-1942.