what are hierarchical files? - uk data service · higher els ower levels ousehold 1 egion: north...
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ukdataservice.ac.uk
What are hierarchical files?
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11 August 2014
T +44 (0) 1206 872143E help@ukdataservice.ac.ukW ukdataservice.ac.uk
The UK Data Service delivers quality social and economic data resources for researchers, teachers and policymakers.
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