1
Published: 1984
Superior document: Comparative studies / World Fertility Survey, International Statistical Institute 31
2
Published: 1980
Superior document: Comparative studies / World Fertility Survey, International Statistical Institute 8
3
Problems of organizing an international survey / by Martin Vaessen ; J. Timothy Sprehe ; Yasar Yaser
Published: [1980]
Superior document: World Fertility Survey Confernce : Methodology session 5