- unitid
-
{"value"=>"3397305", "type"=>"local_mss"}
{"value"=>"4", "type"=>"local_mss_er"}
- unitdate
-
{"value"=>"1994-2004", "type"=>"inclusive", "normal"=>"1994/2004"}
- unittitle
-
{"value"=>"\"American Literature\" for <span class=\"title\">Encyclopedia Britannica</span>"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"12 computer files", "unit"=>"computer_files"}, {"name"=>"extent", "value"=>"1.1 megabytes", "unit"=>"megabytes"}]}
- date_start
-
1994
- keydate
-
1994
- date_end
-
2004
- date_inclusive_start
-
1994
- date_inclusive_end
-
2004