Network, 1996: credits (Howard Gottfried)

Internet Movie Database, Mar. 14, 1997 (Howard Gottfried)

OCLC, Mar. 14, 1997 (hdg.: Gottfried, Howard)

Los Angeles times WWW site, viewed Dec. 14, 2017 (in obituary dated Dec. 13, 2017: movie producer Howard Gottfried, whose longtime partnership with famed scriptwriter Paddy Chayefsky yielded acclaimed films such as "Network" and "Altered States," has died at 94 at Cedars-Sinai Medical Center [Los Angeles, Calif.] on Friday [Dec. 8, 2017]; born Nov. 13, 1923)