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(NB: Changes made to updated vocabularies are specified in Version notes and Version Changes of each amended CV)
- Kind Of Data Format, title changed to General Data Format, 12/2017, http://ddi.icpsr.umich.edu/Specification/DDI-CV/GeneralDataFormat_2.0.html
- Mode Of Collection, updated, 12/2017, http://ddi.icpsr.umich.edu/Specification/DDI-CV/ModeOfCollection_3.0.html
- Summary Statistic Type, updated, 12/2017, http://ddi.icpsr.umich.edu/Specification/DDI-CV/SummaryStatisticType_2.1.html
- Type Of Instrument, updated, 12/2017, http://ddi.icpsr.umich.edu/Specification/DDI-CV/TypeOfInstrument_1.1.html