Development of environmental health criteria for urban planning report of WHO Scientific Group.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Geneva
          World Health Organization
    
        1972. | 
| Cyfres: | World Health Organization. Technical report series
              no. 511 | 
| Pynciau: |