- unitid
-
{"value"=>"3640913", "type"=>"local_mss"}
{"value"=>"204992", "type"=>"local_mss_av"}
- unitdate
-
{"value"=>"circa 1990", "type"=>"inclusive", "normal"=>"1990", "certainty"=>"approximate"}
- unittitle
-
{"value"=>"Rivera speaking before an audience"}
- physdesc
-
{"format"=>"structured", "physdesc_components"=>[{"name"=>"extent", "value"=>"1 audio recording", "unit"=>"audio_recordings"}]}
- date_start
-
1990
- keydate
-
1990
- date_end
-
1990
- date_inclusive_start
-
1990
- date_inclusive_end
-
1990
- extent_statement
-
1 audio recording