Columbia subject headings:
Counterculture--Congresses.
Popular music--Social aspects--Congresses.
Rock music--Social aspects--Congresses.
Subculture--Congresses.
Harvard subject headings:
Princeton subject headings:
Counterculture--Congresses.
Popular music--Social aspects--Congresses.
Rock music--Social aspects--Congresses.
Subculture--Congresses.