"The Foundation and Its History". waksman-foundation.org (No further authorship information available). March 4, 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: January 11, 2007.
web.archive.org
"The Foundation and Its History". waksman-foundation.org (No further authorship information available). March 4, 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: January 11, 2007.