- unitid
-
{"value"=>"3654670", "type"=>"local_mss"}
- unitdate
-
{"value"=>"1971-1972", "type"=>"inclusive", "normal"=>"1971/1972"}
{"value"=>"1977-1980", "type"=>"inclusive", "normal"=>"1977/1980"}
{"value"=>"1992", "type"=>"inclusive", "normal"=>"1992"}
- unittitle
-
{"value"=>"Hill, Gladwin"}
- container
-
{"type"=>"box", "value"=>"125"}
- note
-
{"value"=>"See also: Conservation and Environmental Problems, 1969-1974, 1980; Population Problem, 1969-1973"}
- date_start
-
1971
- keydate
-
1971
- date_end
-
1992
- date_inclusive_start
-
1971
- date_inclusive_end
-
1992