Proofs
- Publisher: PenWell Pub. Co., Dental Economics Division [etc.]
- Print ISSN: 0033-1236
- Electronic ISSN:
- OCLC Number: 2266541
- Subject: Dental instruments and apparatus Periodicals
- Subject code: R
- Publication history: Began in 1918.
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | v.7-8 1924-1925; v.17-8 1934-1935; v.19-20 1936-1937; v.21-2 1938-1939; v.23-4 1940-1941; v.25 1942; v.29-31 1946-1948; v.32-3 1949-1950; v.34-5 1951-1952; v.73 1990 | permanent |