Trends in birth rates in the United States since 1870.
| Yazar: | |
|---|---|
| Materyal Türü: | Kitap |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
Baltimore
Johns Hopkins Press
1958.
|
| Seri Bilgileri: | The Johns Hopkins University studies in historical and political science
ser. 76, no. 1 |
| Konular: |