Sources
Source: Atlas of United States trees
| Id | 17 |
| In text | Atlas of United States trees |
| Citation | Little, E.L., Jr. 1978, Atlas of United States trees |
| Url | http://esp.cr.usgs.gov/data/atlas/little/ |
| Created at | 2011-08-22 15:37:13 UTC |
| Updated at | 2011-08-22 15:37:13 UTC |
| Title | Atlas of United States trees |
| User |
