Memorandum relating to the enquiries into the causes and prevention of still-births and mortality during the first year of life. Austria, France, Germany, Great Britain, Italy, Netherlands, Norway.
| Awdur Corfforaethol: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Geneva
s.n.
1930.
|
| Pynciau: |