Columbia subject headings:
Harvard subject headings:
Arts and society--History--20th century--Congresses.
Beatles--Influence--Congresses.
Beatles. Sgt. Pepper's Lonely Hearts Club Band--Congresses.
Nineteen sixty-seven, A.D.--Social aspects--Congresses.
Popular culture--History--20th century--Congresses.
Popular music--Social aspects--History--Congresses.
Sound recordings--Album covers--Themes, motives--Social aspects--Congresses.
Princeton subject headings:
Arts and society--History--20th century.
Beatles--Influence.
Beatles. Sgt. Pepper's Lonely Hearts Club Band
Nineteen sixties--Social aspects.
Nineteen sixty-seven, A.D.
Popular culture--History--20th century.
Sound recordings--Album covers--Themes, motives.