TY  - BOOK
AU  - "United Nations,International Economic And Social Affairs"
ED  - "United Nations,International Economic And Social Affairs"
TI  - Patterns of first marriage :  Timing and prevalence
U1  - "Y:3217.1.N8, N0/UN" 
PY  - 1990///
CY  - UN
PB  - NY       
ER  -