- unitid
-
{"value"=>"6083", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1933-1934", "type"=>"inclusive", "normal"=>"1933/1934"}
{"value"=>"1938-1939", "type"=>"inclusive", "normal"=>"1938/1939"}
- unittitle
-
{"value"=>"National Bureau of Economic Research"}
- container
-
{"type"=>"box", "value"=>"147"}
{"type"=>"folder", "value"=>"33"}
- date_start
-
1933
- keydate
-
1933
- date_end
-
1939
- date_inclusive_start
-
1933
- date_inclusive_end
-
1939