Robert S. Zeigler; Sally A. Leong; P. S. Teng; International Rice Research Institute (1 January 1994). Rice Blast Disease. Int. Rice Res. Inst. pp. 533–. ISBN978-0-85198-935-8.
"U.S. Army Activity in the U.S. Bio-warfare Program"(PDF). The National Security Archive, The Gelman Library, George Washington University. January 24, 1977. Retrieved February 18, 2013. This article incorporates text from this source, which is in the public domain.
"Cold War exposures". February 28, 2014. Archived from the original on July 30, 2015. Retrieved December 25, 2016. This article incorporates text from this source, which is in the public domain.
"Secret Testing in the United States". The American Experience. The Corporation for Public Broadcasting. Retrieved April 14, 2013. This article incorporates text from this source, which is in the public domain.
"Summary of Major Events and Problems: Fiscal Years 1961–1962". Maryland: US Army Chemical Corps Historical Office, Army Chemical Center via rockymountainarsenalarchive.wordpress.com blog. 1962. Retrieved February 18, 2013. This article incorporates text from this source, which is in the public domain.
"Cold War exposures". February 28, 2014. Archived from the original on July 30, 2015. Retrieved December 25, 2016. This article incorporates text from this source, which is in the public domain.