Columbia subject headings:
Forced labor--Russia (Federation)--Kama River Region--History--20th century--Sources.
Forced migration--Russia (Federation)--Kama River Region--History--20th century--Sources.
Germans--Russia (Federation)--Kama River Region--History--20th century--Sources.
Kama River Region (Russia)--History--20th century--Sources.
Harvard subject headings:
Forced labor--Russia (Federation)--Kama River Region--History--20th century--Sources.
Forced migration--Russia (Federation)--Kama River Region--History--20th century--Sources.
Germans--Russia (Federation)--Kama River Region--History--20th century--Sources.
Kama River Region (Russia)--History--20th century--Sources.
Princeton subject headings:
Forced labor--Russia (Federation)--Kama River Region--History--20th century--Sources.
Forced migration--Russia (Federation)--Kama River Region--History--20th century--Sources.
Germans--Russia (Federation)--Kama River Region--History--20th century--Sources.
Kama River Region (Russia)--History--20th century--Sources.