00694cam a22002171 4500 ca 13000251 DLC 20260227111058.0 820221s1912 xx 100 0 mul ca 13000251 (OCoLC)14775608 DLC DNLM DLC premarc RA422 .I6 1912h W3 IN409 1912o International congress of hygiene and demography (15th : 1912 : Washington, D. C.) Official program, XV International congress on hygiene and demography, Washington, D. C., September 23-28, 1912. [Washington? 1912] 174 p. English, French and German. 14698 14698