@inbook{Arru2003,
author = {Arru, A. and Ramella, F.},
title= {Introduzione},
year = {2003},
editor = {Arru, A.},
editor = {Ramella, F.},
booktitle = {L’Italia delle migrazioni interne},
address = {Roma},
publisher = {Donzelli},
pages = {IX--XX},
}