Columbia subject headings:
Urban-rural migration--France--Brittany--Case studies.
Urban-rural migration--Great Britain--Case studies.
Urban-rural migration.
Harvard subject headings:
Urban-rural migration--France--Brittany--Case studies.
Urban-rural migration--Great Britain--Case studies.
Urban-rural migration.
Princeton subject headings:
Urban-rural migration--Case studies.
Urban-rural migration--Cornwall--Case studies.