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.
Citazione stile Chigago Style (17a edizione)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.
Citatione MLA (9a ed.)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.