Medico-sanitary work in a village.
| Format: | Livre | 
|---|---|
| Langue: | English | 
| Publié: | Hanoi
          [s.n.]
    
        [197-]. | 
| Collection: | Vietnamese studies
              68 | 
| Sujets: | 
| Format: | Livre | 
|---|---|
| Langue: | English | 
| Publié: | Hanoi
          [s.n.]
    
        [197-]. | 
| Collection: | Vietnamese studies
              68 | 
| Sujets: |