Columbia subject headings:
Harvard subject headings:
Industrial hygiene--Europe--Congresses.
Industrial welfare--Europe--Congresses.
Job security--Europe--Congresses.
Job stress--Europe--Congresses.
Labor market--Europe--Congresses.
Unemployment--Europe--Psychological aspects--Congresses.
Princeton subject headings:
Industrial hygiene--Europe--Congresses.
Industrial welfare--Europe--Congresses.
Job security--Europe--Congresses.
Job stress--Europe--Congresses.
Labor market--Europe--Congresses.
Unemployment--Psychological aspects--Europe--Congresses.