- unitid
-
{"value"=>"3340040", "type"=>"local_mss"}
{"value"=>"158", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1992-2002", "type"=>"inclusive", "normal"=>"1992/2002"}
- unittitle
-
{"value"=>"Production Histories"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"10 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"574.3 kilobytes", "unit"=>"kilobytes"}]}
- date_start
-
1992
- keydate
-
1992
- date_end
-
2002
- date_inclusive_start
-
1992
- date_inclusive_end
-
2002