The population dilemma
| Awdur Corfforaethol: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New Jersey
Prentice-Hall
[c1969]
|
| Rhifyn: | 2nd ed. |
| Cyfres: | A Spectrum book: the American Assembly series
|
| Pynciau: |