- unitid
-
{"value"=>"3407002", "type"=>"local_mss"}
{"value"=>"15", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1990-1997", "type"=>"inclusive", "normal"=>"1990/1997"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"39 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"732.2 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
1990
- keydate
-
1990
- date_end
-
1997
- date_inclusive_start
-
1990
- date_inclusive_end
-
1997