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