Distribution of poliomyelitis, 1900-1950
Series: Atlas of distribution of diseases, plate 1
Published: 1950
Place of publication: New York : American Geographical Society, 1950
Language: und
Number of pages: 64
Subjects: Diseases; Poliomyelitis
Work titles: World. Diseases. 30,000,000. 1950
Notes: Scale 1:30,000,000 or 1:15,000,000.

Maps of 6 continents.

On verso: Discussion of sources.