Columbia subject headings:
Industrial hygiene.
Public health--France--Fougères.
Unemployed--Health and hygiene--France--Fougères.
Unemployed--Health and hygiene.
Unemployment--France--Fougères.
Harvard subject headings:
Industrial hygiene.
Public health--France--Fougères.
Unemployed--Health and hygiene--France--Fougères.
Unemployed--Health and hygiene.
Unemployment--France--Fougères.
Princeton subject headings: