IV Pan American Conference of National Directors of Health
Subtitle: (Final act.)
Series: Publicación (Pan American Sanitary Bureau) -- no. 151
Published: 1940
Place of publication: Washington, D.C
Language: eng
Subjects: Public health; Congresses
Notes: Cover title.

"Reprinted form the Boletín de la Oficina Sanitaria Panamericana, July 1940."