Columbia subject headings:
Protest movements--United States.
Radicalism in art.
Radicalism in literature.
Radicalism--Songs and music--History and criticism.
Radicalism--United States.
Social movements in art.
Social movements in literature.
Harvard subject headings:
Princeton subject headings:
Protest movements--United States.
Radicalism in art.
Radicalism in literature.
Radicalism--Songs and music--History and criticism.
Radicalism--United States.
Social movements in art.
Social movements in literature.