"Concentration Camps, 1939-1942." Holocaust Encyclopedia . Washington, D.C.: United States Holocaust Memorial Museum, 2011. Web. .
“The Holocaust: A Historical Summary.” Beyond the Wall of Remembrance. Nov. 1993: 5-10. SIRS Discoverer. Web. 19 February 2012.
2011. "Life in Shadows Hidden Children and the Holocaust." United States Holocaust Memorial Museum. United States Holocaust Memorial Museum, 6 Sep. 2004.Web. 28 Mar.
Upper Saddle River: Pearson Education, Inc., 2011. Museum, United States Holocaust Memorial. "Introduction to the Holocaust." 6 January 2011. United Sates Holocaust Memorial Museum.
“Holocaust Encyclopedia.” Untied Sates Holocaust Memorial Museum. Ns. 6 Jan 2011. Web. 14 March 2011.
24 Mar. 2014. “Museum News.” Holocaustresources.org. July 2007. August 2007.
Lanham: (Rowman & Littlefield Publishers, 2009). Grace Products Corporation. Children of the Holocaust. 2011. http://www.graceproducts.com/fmnc/sfrida.htm (accessed March 20, 2011). Niewvk, Donald L. The Holocaust.
United States Holocaust Memorial Museum. Accessed on 15 Mar. 2011.
Holocaust Encyclopedia. United States Holocaust Memorial Museum. 2004. 19 Mar. 2014. media_oi.php?MediaId=4784> Sachar, Abram.
“Preserving Memory: National Holocaust Memorial Museum Controversy.” Suite101.com. Suite101.com. Media, 30 Dec. 2010. Web. 20 Dec. 2010.