1
Published: 1995
Superior document: European studies of population 3
2
Published: 1976
Superior document: Publications of the Netherlands Interuniversity Demographic Institute (NIDI) and the Population and Family Study Centre (CBGS) / Nederlands Interuniversitair Demografisch Instituut <'s-Gravenhage> 2
3
Published: 1991
Superior document: NIDI CBGS publications 21