1
Published: 1980
Superior document: Comparative studies / World Fertility Survey, International Statistical Institute 7
2
3
Published: 1980
Superior document: Technical bulletins / International Statistical Institute, World Fertility Survey 6
4
5
Published: 1983
Superior document: Comparative studies / World Fertility Survey, International Statistical Institute 23
6
7
Published: 1984
Superior document: Comparative studies / World Fertility Survey, International Statistical Institute 34