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Subjects
Human ecology, Communism, Communism and education, Congresses, Effect of human beings on, Environmental policy, Human beings, Influence on nature, International Environmental law, Irrigation engineering, Labor policy, Law and legislation, Natural resources, Nature, Pollution, Research, Social conditions, Social policy, Water salinizationID Numbers
- OLID: OL1057114A
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November 22, 2017 | Edited by MARC Bot | fix combining diacritics |
April 1, 2008 | Created by an anonymous user | initial import |