@inbook{Billari2003,
author = {Billari, F.C. and Castiglioni, M. and Castro-Martín, T. and Michielin, F. and Ongaro, F.},
title= {Household and union formation in a Mediterranean fashion: Italy and Spain},
year = {2003},
editor = {Klijzing, E.},
editor = {Corijn, M.},
booktitle = {Comparative Research on Fertility and the Family in Contemporary Europe: Findings and Lessons from Comparative Research, Vol. II},
address = {New York/Geneva},
publisher = {United Nations},
pages = {17--41},
}