The blue book contractors register.
- Publisher: Contractors Register
- Print ISSN: 0732-9164
- Electronic ISSN: 0732-9164
- OCLC Number: 3836415
- Subject: Contractors United States Directories.
- Subject code: T
- Publication history: 58th annual ed. (1971)-74th annual ed. (1987).
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1987 v.2 | permanent |