Half a century of medical and public health progress, 1890-1940
By: by Dr. Arístides A. Moll. Fiftieth anniversary of the Pan American union, 1890 - April 14 - 1940
Publisher: Pan American Union
Published: 1940
Place of publication: Washington D.C
Language: eng
Number of pages: 17
Subjects: Medicine -- America; Medicine -- Latin America; Public health -- United States; Public health -- Latin America
Notes: Cover title

At head of title: Pan American day, April 14

Mimeographed