Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Periodical. Lederberg, Joshua. "The Dilemma of Curbing Chemical Warfare." Washington Post, (27 September 1970): sec. B, p. 4. Article. Newspaper Column. 3 Images.. Washington Post. Lederberg UI. S219