ジュゼッペ・ザナルデッリ
↑ De Grand, The hunchback's tailor, p. 17
↑ Seton-Watson, Italy from liberalism to fascism, pp. 47–48
原典:
De Grand, Alexander J. (2001). The hunchback's tailor: Giovanni Giolitti and liberal Italy from the challenge of mass politics to the rise of fascism, 1882–1922, Greenwood.
Sarti, Roland (2004). Italy: a reference guide from the Renaissance to the present, New York: Facts on File Inc., ISBN 0-81607-474-7
Seton-Watson, Christopher (1967). Italy from liberalism to fascism, 1870–1925, New York: Taylor & Francis, ISBN 0-416-18940-7
Roberto Chiarini (1976) (イタリア語).