- unitid
-
{"value"=>"3407021", "type"=>"local_mss"}
{"value"=>"23", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1990", "type"=>"inclusive", "normal"=>"1990"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"37 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"345.1 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
1990
- keydate
-
1990
- date_end
-
1990
- date_inclusive_start
-
1990
- date_inclusive_end
-
1990