From Aliens to Citizens: Redefining the Status of Immigrants in Europe. Rainer Baubock (Ed.), 1994, Aldershot/Brookfield, Avebury, 233 pp., pbk. ISBN 1 85972 059 5 The Challenge of Diversity: Integration and Pluralism in Societies of Immigration Rainer Baubock, Agnes Heller, Aristide R. Zolberg (Eds), 1996, Aldershot/Brookfield, Avebury, 279 pp., pbk. ISBN 1 85972 401 9