中華人民共和國在美國的情報活動Operations (页面存档备份,存于互联网档案馆) (Annapolis, MD: Naval Institute Press, 1994) Wortzel, Larry M., Hearing on "Enforcement of Federal Espionage Laws." Testimony before
六四清场2007-06-11 Larry Wortzel, "The Tiananmen Massacre Reappraised: Public Protest, Urban Warfare, and the People's Liberation Army" in Andrew Scobell, Larry M. Wortzel