Trends in man-hours expended per unit, household electrical appliances.
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- OCLC Number: 20766249
- Subject: Labor productivity United States.
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- Publication history: 19-
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1948-49; 1939-50 | permanent |