1. The date after the name indicates the year of the first edition or the completion of the work. The year of the edition used here is at the end of the record.
2. Arioti, Maria. 1991. Cacciatori e raccoglitori, società di, entry of Enciclopedia delle scienze sociali. Vol. I. I ed, 609–614. Roma: Enciclopedia Italiana.
3. Backhouse, Roger, Steve Medema. 2007. Defining Economics: Robbins’ Essay in Theory and Practice, Downloaded Through The New Palgrave Dictionary of Economics, 2008, entry Economics, definition of, first posted 2012.
4. Bairoch, Paul. 1997. Victoires et déboires. Histoire économique et sociale du monde du XVIme siècle à nos jours, Italian trans. (Storia economica e sociale del mondo). Torino: Einaudi, 1999.
5. Clark, Grahame. 1977. La preistoria del mondo. Una nuova prospettiva, Translated from English, Garzanti, 1986.