A Directory of information resources in the United States.
- Publisher: Library of Congress
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 213777214
- Subject: Information services United States Directories.
- Subject code: A
- Publication history: 1965-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1965; 1973 | permanent |