TY  - BOOK
AU  -  Grebenik,E.
ED  -  World Fertility Survey.
ED  -  International Statistical Institute.
TI  -  The world fertility survey and its 1980 conference / 
U1  -  304.632 GRE 
PY  - 1981///
CY  -  The Hague : 
PB  -  International Statistical Institute, 
KW  -  Fertility, Human
KW  -  Congresses
ER  -