Environment for man the next fifty years
| Údar corparáideach: | |
|---|---|
| Formáid: | LEABHAR | 
| Teanga: | English | 
| Foilsithe / Cruthaithe: | Bloomington
          Indiana University Press
    
        1967 | 
| Ábhair: | 
| Údar corparáideach: | |
|---|---|
| Formáid: | LEABHAR | 
| Teanga: | English | 
| Foilsithe / Cruthaithe: | Bloomington
          Indiana University Press
    
        1967 | 
| Ábhair: |