- unitid
-
{"value"=>"3617152", "type"=>"local_mss"}
{"value"=>"3", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1980-2010", "type"=>"inclusive", "normal"=>"1980/2010"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"41 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"603.1 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
1980
- keydate
-
1980
- date_end
-
2010
- date_inclusive_start
-
1980
- date_inclusive_end
-
2010