The target resource for this PURL can no longer be traced. The following is a list of the targets this PURL was previously assigned to.
| Timestamp | Target URL | Note |
|---|---|---|
| 10/14/10 21:46:14 | http://www.ntis.gov/fdlp/ | |
| 03/12/13 10:23:42 | http://permanent.access.gpo.gov/410.html | |
| 11/02/16 14:21:43 | http://purl.fdlp.gov/history/GPO/LPS79112 | |
| 05/12/17 10:23:10 | https://purl.fdlp.gov/history/GPO/LPS79112 | for historical information of "DARTS", see: https://www.fdlp.gov/academy/23-about/projects/129-darts |