Columbia subject headings:
Commonwealth of Nations--Industries--Congresses.
Commonwealth of Nations--Social conditions--Congresses.
Harvard subject headings:
Commonwealth countries--Social conditions--Congresses.
Commonwealth of Nations--Industries--Congresses.
Commonwealth of Nations--Social conditions--Congresses.
Industries--Commonwealth countries--Congresses.
Princeton subject headings:
Commonwealth of Nations--Industries--Congresses.
Commonwealth of Nations--Social conditions--Congresses.