League of Nations. Health Organizations. (1930). 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. s.n.
Lua i Stíl Chicago (17ú heag.)League of Nations. Health Organizations. 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. Geneva: s.n, 1930.
Lua MLA (9ú heag.)League of Nations. Health Organizations. 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. s.n, 1930.