| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| Influences of Geographic Environment On the Basis of Ratzel's System of Anthropo-Geography | Semple, Ellen Churchill, 1863-1932 | en | Human geography; Human beings -- Effect of environment on | 2005-03-08 | |||
| Euthenics, the science of controllable environment a plea for better living conditions as a first step toward higher human efficiency | Richards, Ellen H. | en | 2010-03-05 |