Columbia subject headings:
Cambodia--Politics and government--1975-1979--Archival resources.
Documentary photography--Cambodia.
Genocide--Cambodia--Archival resources.
Internment camps--Cambodia--Tuol Sleng--Archival resources.
Massacres--Cambodia--Archival resources.
Nazi concentration camps--Cambodia--Tuol Sleng--Archival resources.
Political prisoners--Cambodia--Tuol Sleng--Portraits.
Vann Nath--Imprisonment--Cambodia--Tuol Sleng.
Victims of state-sponsored terrorism--Cambodia--Portraits.
Harvard subject headings:
Cambodia--History--1975---Pictorial works.
Political atrocities--Cambodia--Pictorial works.
Political prisoners--Cambodia--Portraits.
Tuol Sleng (Prison : Phnom Penh, Cambodia)--Pictorial works.
Vann Nath--Imprisonment--Cambodia--Tuol Sleng.
Princeton subject headings: