New data on differential fertility in the United States /
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
[Baltimore? :
s.n.,
1926?]
|
| Pynciau: |
| Disgrifiad o'r Eitem: | Cover title. "Reprinted from the American journal of hygiene, vol. VI, no. 4, 610-616, July, 1926"--Cover. |
|---|---|
| Disgrifiad Corfforoll: | p. 610-616 ; 27 cm. |