Directory of international scientific organizations.
| Corporate Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | 
        Paris
          UNESCO
    
        [c1950]
     | 
| Series: | Unesco publication
              619.             | 
| Subjects: | 
| Corporate Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | 
        Paris
          UNESCO
    
        [c1950]
     | 
| Series: | Unesco publication
              619.             | 
| Subjects: |