00588nam a2200193 4500 med47003118 DLC 20260227111607.0 851129m19469999ve a 100 0 spa med47003118 DLC DLC DLC RA422 .P25 1947b 614.06387 19 Pan American Sanitary Conference (12th : 1947 : Caracas, Venezuela) Cuadernos amarillos. Caracas, Editorial Grafolit, 1946- v. <2, 6, 12-14, 16, 19, 21-29 > illus. 24 cm. Public health Congresses. 38739 38739