Flint, Peters B.. „Dolores Costello, 73, Film Star“. The New York Times (3-mart 1979-yil). 2017-yil 29-sentyabrda asl nusxadan arxivlangan. Qaraldi: 29-sentyabr 2017-yil.Flint, Peters B. (March 3, 1979). . The New York Times. Archived from the original on September 29, 2017. Retrieved September 29, 2017.
„John Drew Barrymore“. Syracuse Post Standard (30-noyabr 2004-yil). Qaraldi: 23-iyul 2020-yil.
web.archive.org
Flint, Peters B.. „Dolores Costello, 73, Film Star“. The New York Times (3-mart 1979-yil). 2017-yil 29-sentyabrda asl nusxadan arxivlangan. Qaraldi: 29-sentyabr 2017-yil.Flint, Peters B. (March 3, 1979). . The New York Times. Archived from the original on September 29, 2017. Retrieved September 29, 2017.