Mario Sironi, 1930.

Lettere, c2007: (Mario Sironi) p. 117 (b. 1885 in Sassari) p. 118 (d. 1961 in Milan)

Mario Sironi, 2013: portada (painter, draugfstman)

Union List of Artists Names Online, sitio web, 25 mayo 2016: (Sironi, Mario (Italian painter, 1885-1961). Note: Italian painter who often featured architecture in his work.) http://www.getty.edu/vow/ULANFullDisplay?find=Sironi%2C+Mario&role=&nation=&prev_page=1&subjectid=500012403

RKD artists, sitio web, 25 mayo 2016: (Mario Sironi, male / Italian architect, sculptor, scenic painter, glass painter, illustrator, painter, draftsman, author. Born: Sassari, 1885-05-12; Deceased: Milan, 1961) https://rkd.nl/explore/artists/254343