Columbia subject headings:
Harvard subject headings:
Lantern projection--Social aspects.
Lantern slides--Social aspects.
Light art--Social aspects.
Motion pictures--Social aspects
Poverty in mass media--History.
Projection art--History.
Projection art--Social aspects.
Social problems in motion pictures.
Princeton subject headings:
Lantern projection--Social aspects.
Lantern slides--Social aspects.
Light art--Social aspects.
Motion pictures--Social aspects.
Poverty in mass media--History.
Projection art--History.
Projection art--Social aspects.
Social problems in motion pictures.