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Ecology
Effect of human beings on
2
Environmental protection
2
Human ecology
2
Nature
2
Pollution
42.90 ecology: general
1
Conservation of natural resources
1
E ́cologie
1
ECOLOGY
1
Ecologie
1
Ecologie humaine
1
Environmental Monitoring
1
Environmental Pollution
1
Environmental aspects
1
Homme
1
Industrie
1
Industries
1
Influence sur la nature
1
Protection de l'environnement
1
Publications pe ́riodiques
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Electrónico Revista -
2Publicado 1979Materias: “...Environmental protection Periodicals....”
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Electrónico Revista