Use and conservation of the biosphere proceedings.
| Main Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | [Paris]
          Unesco
    
        [1970] | 
| Series: | Natural resources research
              10. | 
| Subjects: | 
| Main Author: | |
|---|---|
| Format: | Book | 
| Language: | English | 
| Published: | [Paris]
          Unesco
    
        [1970] | 
| Series: | Natural resources research
              10. | 
| Subjects: |