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URL: journals.cambri ... http://journals.cambridge.org/action/displayJournal?jid=ENC
Wikipedia: de.wikipedia.or ... https://de.wikipedia.org/wiki/Environmental_Conservation
SUDOC: www.sudoc.fr/04 ... http://www.sudoc.fr/048900281
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q1345887
KEEPERS link: archive.org/det ... https://archive.org/details/pub_environmental-conservation
KEEPERS link: portico.org/sta ... http://portico.org/stable?cs=ISSN_03651118
KEEPERS link: portico.org/sta ... http://portico.org/stable?cs=ISSN_03651118
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