Agostini, B. d'. Colloqui con Rachele Mussolini, 1946.
Donna Rachele, 2015 p. 9 (Rachele Guidi Mussolini) p. 295 (d. Oct. 30, 1979)
Mussolini, 1974 title page (Rachele Mussolini) jacket cover page 4 (born 1890 in Forlí, Italy; wife of Benito Mussolini)
Wikipedia, April 12, 2018 (Rachele Mussolini; Rachele Mussolini (née Guidi; 11 April 1890--30 October 1979) was the wife of Italian dictator Benito Mussolini; she was born Rachele Guidi in Predappio, Romagna, Kingdom of Italy (Regno d'Italia); Rachele Guidi and Benito Mussolini were married in a civil ceremony in Treviglio, Lombardy, 17 December 1915; with Albert Zarca she wrote a biography of her husband, translated into English as Mussolini: An Intimate Biography; she died in Forlì, Italy)
BnF, April 12, 2018 (Mussolini, Rachele (1890-1979); Italian; female; born 1890-04-11 in Predappio, Italy; died 1979-10-30 in Forlì, Italy; second wife of Benito Mussolini; other names: Guidi, Rachele (1890-1979); Mussolini Guidi, Rachele (1890-1979))
Catalogo Del Servizio Bibliotecario Nazionale, April 12, 2018 (Mussolini, Rachele <1890-1979>; other names: Guidi, Rachele, Mussolini Guidi, Rachele; wife of Benito Mussolini; memorialist; born and died in Predappio (FO))