Smallpox and its eradication
| Rannpháirtithe: | |
|---|---|
| Formáid: | LEABHAR |
| Teanga: | English |
| Foilsithe / Cruthaithe: |
Geneva
World Health Organization
c1988.
|
| Sraith: | History of international public health, no.6
|
| Ábhair: |