Columbia subject headings:
Harvard subject headings:
Child welfare--Switzerland--Bern (Canton)--History--20th century.
Foster children--Switzerland--Bern (Canton)--History--20th century.
Foster children--Switzerland--Bern (Canton)--Social conditions.
Foster home care--Switzerland--Bern (Canton)--History--20th century.
Princeton subject headings:
Child welfare--Switzerland--Bern (Canton)--History--20th century.
Foster children--Switzerland--Bern (Canton)--History--20th century.
Foster children--Switzerland--Bern (Canton)--Social conditions.
Foster home care--Switzerland--Bern (Canton)--History--20th century.