- unitid
-
{"value"=>"3397339", "type"=>"local_mss"}
{"value"=>"75", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1990-1992", "type"=>"inclusive", "normal"=>"1990/1992"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"110 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"248.3 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
1990
- keydate
-
1990
- date_end
-
1992
- date_inclusive_start
-
1990
- date_inclusive_end
-
1992