(en-US) Shawn G. Kennedy, « BORIS SAGAL, 58, MOVIE DIRECTOR, DIES AFTER A HELICOPTER ACCIDENT (Published 1981) », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )
nytimes.com
(en-US) Shawn G. Kennedy, « BORIS SAGAL, 58, MOVIE DIRECTOR, DIES AFTER A HELICOPTER ACCIDENT (Published 1981) », The New York Times, (ISSN0362-4331, lire en ligne, consulté le )