Columbia subject headings:
Quality of life--Germany--Congresses.
Quality of life--Japan--Congresses.
Quality of work life--Germany--Congresses.
Quality of work life--Japan--Congresses.
Harvard subject headings:
Quality of life--Germany--Congresses.
Quality of life--Japan--Congresses.
Quality of work life--Germany--Congresses.
Quality of work life--Japan--Congresses.
Princeton subject headings: