| Subject |
|---|
| Himalayas [35] |
| Himalayas--research [1] |
| History [252] |
| history [50] |
| Hobbes, Thomas [2] |
| households [104] |
| households--developing countries [2] |
| households--economics [1] |
| households--surveys [1] |
| housing [17] |
| human behavior [32] |
| human ecology [15] |
| human-environment interaction [56] |
| humanitarian aid [1] |
| humanities [3] |
| Humanities [3] |
| human resources [6] |
| human rights [20] |
| hunters and gatherers [21] |
| Hydrogeology [7] |