- unitid
-
{"value"=>"3403986", "type"=>"local_mss"}
{"value"=>"4", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"2007-2009", "type"=>"inclusive", "normal"=>"2007/2009"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"1362 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"1.2 gigabytes", "unit"=>"gigabytes"}]}
- date_start
-
2007
- keydate
-
2007
- date_end
-
2009
- date_inclusive_start
-
2007
- date_inclusive_end
-
2009