TY  - BOOK
AU  - Abbas, Ibrahim
AU  - Kalule.abiti, I
ED  - International Statistical Institute
TI  - Proximate determinants of fertility in North Sudan
CY  - London
KW  - Age
KW  - Lowlands
KW  - ofothills
KW  - River valley
KW  - Sex
KW  - WFS
ER  -