World population in transition
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Philadelphia
[s.n.]
1945.
|
| Cyfres: | Its Annals, v. 237, January, 1945
|
| Pynciau: |
| Awduron Eraill: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Philadelphia
[s.n.]
1945.
|
| Cyfres: | Its Annals, v. 237, January, 1945
|
| Pynciau: |