Ciliated protozoa an illustrated guide to the species used as biological indicators in freshwater biology.
| Autor principal: | |
|---|---|
| Format: | Llibre | 
| Idioma: | English | 
| Publicat: | Geneva
          World Health Organization
    
        1972 | 
| Matèries: | 
| Autor principal: | |
|---|---|
| Format: | Llibre | 
| Idioma: | English | 
| Publicat: | Geneva
          World Health Organization
    
        1972 | 
| Matèries: |