Sources of information and unusual services :
- Publisher: Informational Directory Co.
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 1586023
- Subject: Information services United States Periodicals.
- Subject code: A
- Publication history: 2nd-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1952; 1954/1955; 1956/1957; 1958-1959; 1961; 1964 | permanent |