1
Published: 1989
Superior document: IPD-working paper 1989-1
2
Published: 1987
Superior document: IPD-working paper 1987-5
3
Published: 1989
Superior document: IPD-working paper 1989,3
4
Published: 1985
Superior document: IPD-working paper 1985-6
5
Published: 1985
Superior document: IPD working paper / Interuniversity Programme in Demography 1985,8
6
Published: 1985
Superior document: IPD-working paper 1985-2