Columbia subject headings:
Harvard subject headings:
Cybernetics--Congresses.
Human ecology--Congresses
Life--Congresses
Philosophical anthropology--Congresses.
Sociology--Philosophy--Congresses
Princeton subject headings:
Cybernetics--Congresses.
Human ecology--Congresses.
Life--Congresses.
Philosophical anthropology--Congresses.
Sociology--Philosophy--Congresses.