- unitid
-
{"value"=>"3656623", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1969-1974", "type"=>"inclusive", "normal"=>"1969/1974"}
{"value"=>"1980", "type"=>"inclusive", "normal"=>"1980"}
{"value"=>"1983", "type"=>"inclusive", "normal"=>"1983"}
- unittitle
-
{"value"=>"Conservation and Environmental Problems"}
- scopecontent
-
{"value"=>"<p>Memoranda and letters about the <span class=\"title\">Times</span> 's coverage of pollution, conservation, and related topics.</p>"}
- container
-
{"type"=>"box", "value"=>"66"}
{"type"=>"folder", "value"=>"15"}
- date_start
-
1969
- keydate
-
1969
- date_end
-
1983
- date_inclusive_start
-
1969
- date_inclusive_end
-
1983