McDonald, J.S. (outubro de 1958), «Some Socio-Economic Emigration Differentials in Rural Italy, 1902-1913», Economic Development and Cultural Change, ISSN0013-0079, 7 (1): 55–72, doi:10.1086/449779
Agatha Ramm, "Great Britain and the Planting of Italian Power in the Red Sea, 1868–1885," English Historical Review (1944) 59#234 pp. 211–236 JSTOR54002
H. Ahmad Abdussamad, "Trade Relations of Northern Ethiopia with Italian Eritrea 1903–1935," Africa (1997) 52#3 pp 416–430 JSTOR40761155
James J. Sadkovich, "Understanding Defeat: Reappraising Italy's Role in World War II," Journal of Contemporary History (1989) 24#1 pp. 27–61 online.
McDonald, J.S. (outubro de 1958), «Some Socio-Economic Emigration Differentials in Rural Italy, 1902-1913», Economic Development and Cultural Change, ISSN0013-0079, 7 (1): 55–72, doi:10.1086/449779