Columbia subject headings:
Kushnikov, Petr, 1892-1960--Diaries.
Russia. Armii︠a︡--Biography.
Soldiers--Soviet Union--Diaries.
Soviet Union--History--Revolution, 1917-1921--Personal narratives.
Harvard subject headings:
Kushnikov, Petr, 1892-1960--Diaries.
Russia. Armii︠a︡--Biography.
Soldiers--Soviet Union--Diaries.
Soviet Union--History--Revolution, 1917-1921--Personal narratives.
Princeton subject headings:
Kushnikov, Petr, 1892-1960.
Soviet Union--History--Revolution, 1917-1921--Sources.