Practical benefits on space exploration a digest of papers presented at the United Nations Conference on the Exploration and Peaceful Uses of Outer Space, Vienna, 1968.
| Coauteurs: | , | 
|---|---|
| Formaat: | Boek | 
| Taal: | English | 
| Gepubliceerd in: | New York
          United Nations
    
        1969. | 
| Onderwerpen: |