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| Type | Company |
| Location | United Kingdom (Western Europe) |
| Industry | Consultancy Services |
| Holdings | Newspaper clippings: 1962-1997 Annual reports: 1999/00-2005 |
| includes | Ricardo & Co Engineeers (1927) Ltd – 1978; Ricardo Consulting Engineers – 1991; Ricardo International |
| URI | https://pm20.zbw.eu/folder/co/066208 |
| ID | co/066208 |