![](/img/cover-not-exists.png)
The Idea Review *
Leach, Charlotte, Rosen, GeorgeVolume:
42
Language:
english
Journal:
American Journal of Public Health and the Nations Health
DOI:
10.2105/ajph.42.9.1041
Date:
September, 1952
File:
PDF, 2.10 MB
english, 1952