Työtehoseuran vuosikirja.
- Publisher: Työtehoseura
- Print ISSN: 0785-5362
- Electronic ISSN: 0785-5362
- OCLC Number: 2629616
- Subject: Industrial efficiency Periodicals.
- Subject code: T
- Publication history:
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1949-54; 1955-59; 1960-66; 1968-76; 1977-84; 1986-1991; 1992-97; 1998-2003 | permanent |