[Field research on third-world immigrants in the Trento area].

"The main findings of three empirical [surveys] conducted in the province of Trento [Italy] are presented with a view to gain knowledge about...quantitative aspects...socio-anthropological characteristics and the impact of immigrants from non-European countries on the local economic structure. These findings...reveal the functional role exercised by immigrants, particularly in some central and northern areas of the country, for its economic growth...." The need to improve housing and make health services more accessible to migrants are discussed. The surveys were conducted during 1990 and 1991. (SUMMARY IN ENG AND FRE)