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.

Manylion Llyfryddiaeth
Awdur Corfforaethol: League of Nations. Health Organizations
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Geneva s.n. 1930.
Pynciau: