Columbia subject headings:
Germans--Russia (Federation)--Orenburg--History--Sources.
Germans--Russia (Federation)--Orenburgai͡a gubernii͡a--History--Sources.
Germans--Russia (Federation)--Orenburgai͡a oblastʹ--History--Sources.
Orenburg (Russia)--Ethnic relations--Sources.
Harvard subject headings:
Germans--Legal status, laws, etc.--Russia (Federation)--Orenburgskai︠a︡ oblastʹ--Sources.
Germans--Russia (Federation)--Orenburgskai︠a︡ oblastʹ--History--Sources.
Orenburgskai︠a︡ oblastʹ (Russia)--Ethnic relations--Sources.
Princeton subject headings:
Germans--Russia (Federation)--Orenburg--History--Sources.
Germans--Russia (Federation)--Orenburgai︠a︡ gubernii︠a︡--History--Sources.
Germans--Russia (Federation)--Orenburgai︠a︡ oblastʹ--History--Sources.
Orenburg (Russia)--Ethnic relations--Sources.