Interpretation of short-term birth rate variations.
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York
United Nations
1980.
|
| Cyfres: | Population studies translation series
4 |
| Pynciau: |