Human Breeding and Survival. Population Roads to Peace or War
| Prif Awduron: | , |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York :
Penguin Books,
1947
|
| Disgrifiad Corfforoll: | 138 S. |
|---|---|
| Rhif Galw: | Handbibliothek 3/03 |