A computational methodology for estimating child-years of dependency (CYD) from the 1968 NDS pregnancy roster
| Главный автор: | |
|---|---|
| Формат: |  | 
| Язык: | English | 
| Опубликовано: | [S.l.
          s.n.]
    
        1975. | 
| Серии: | Research note / University of the Philippines. Population Institute
              no. 18 | 
| Предметы: |