Наука · Photo
PSM V84 D422 Desert laboratory tucson arizona.jpg
The desert laboratory, Tucson, Arizona.
- Автор
- Uncredited; D. T. MacDougal
- Атрибуция
- D. T. MacDougal: The measurement of environic factors and their biologic effects. The Popular science monthly, Volume 84, p418 . New York, Popular Science Pub. Co., May 1914. Online: archive.org .
- Лицензия
- Public domain
- Источник
- https://commons.wikimedia.org/wiki/File:PSM_V84_D422_Desert_laboratory_tucson_arizona.jpg