| Citation | Verified | Memento | |
|---|---|---|---|
| 📖 | http://govinfo.library.unt.edu/ngisc/reports/6.pdf | 2016.04.27 |
|
| 📖 | http://www.census.gov/newsroom/releases/archives/income_wealth/cb13-165.html | 2016.04.27 |
|
| 📖 | http://www.nigc.gov/LinkClick.aspx?fileticket=Fhd5shyZ1fM%3D | 2016.04.27 |
|
| 📖 | http://www.sanmanuel-nsn.gov/fourfires.php.html | 2016.04.27 |
|