This primary source comes from the Records of the Central Intelligence Agency.
National Archives Identifier:
305904Full Citation: 263-AUSCHWITZAERIALS-11; Birkenau Extermination Camp - Oswiecim, Poland; 9/13/1944; Aerial Photography of Auschwitz Concentration Camp, 1978 - 1979; Records of the Central Intelligence Agency, Record Group 263; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/birkenau-extermination-camp-oswiecim-poland, May 16, 2024]