Report on the work of the conferences of directors of schools of hygiene held in Paris, May 20th to 23rd, 1930, and in Dresden, July 14th to 17th, 1930 : with a memorandum on the teaching of hygiene in various European countries submitted to the Dresden conference /
League of Nations.Commission on Education in Hygiene and Preventive Medicine.
Geneva : League of Nations,
1930.
At head of title: League of Nations. Health Organisation.
"Official no.: C.H. 888."
"Geneva, november, 1930."
Public health