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| Environmental Conservation Published by: Cambridge, Foundation for Environmental Conservation (United Kingdom (Great Britain)) Subject: Environmental Studies Conservation Language: English Published: 1974 ISSN: 0376-8929 Available at 18 Universities. | |||
| Our Planet Published by: Nairobi, United Nations Environment Programme (UN) Subject: Environmental Studies Conservation Published: 1974 ISSN: 1013-7394 Available at 5 Universities. | |||