Columbia subject headings:
Laziness--Congresses.
Leisure--Congresses.
Lifestyles--Congresses.
Social psychology--Congresses.
Time management--Congresses.
Harvard subject headings:
Laziness--Congresses.
Leisure--Congresses
Lifestyles--Congresses.
Social psychology--Congresses.
Time management--Congresses.
Princeton subject headings: