The environmental future : proceedings of the first International Conference on Environmental Future, held in Finland from 27 June to 3 July 1971 2026-02-16T06:12:19+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Polunin, Nicholas (Macmillan, 1972)