Regional estimates of contraceptive prevalence in February 1977
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
[S.l.
s.n.]
1977.
|
| Saila: | Research note / University of the Philippines. Population Institute
no. 137 |
| Gaiak: |