- unitid
-
{"value"=>"3590739", "type"=>"local_mss"}
{"value"=>"114", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"2001", "type"=>"inclusive", "normal"=>"2001"}
- unittitle
-
{"value"=>"9/11 World Trade Center Attacks"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"14 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"592.0 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
2001
- keydate
-
2001
- date_end
-
2001
- date_inclusive_start
-
2001
- date_inclusive_end
-
2001