A methodological study on the reliability of the 1974 National Acceptor Survey (NAS)
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua | 
| Hizkuntza: | English | 
| Argitaratua: | [S.l.
          s.n.]
    
        1976. | 
| Saila: | Research note / University of the Philippines. Population Institute
              no. 92 | 
| Gaiak: |