(1992). In the depths of darkness: Fifty years ago ; commemoration planning guide ; days of remembrance april 26-may 3, 1992. United States Holocaust Memorial Council Washington D.C..

In the Depths of Darkness: Fifty Years Ago ; Commemoration Planning Guide ; Days of Remembrance April 26-may 3, 1992. Washington: United States Holocaust Memorial Council Washington D.C., 1992.

In the Depths of Darkness: Fifty Years Ago ; Commemoration Planning Guide ; Days of Remembrance April 26-may 3, 1992. United States Holocaust Memorial Council Washington D.C., 1992.