Não informado. (1981). Environmental Monitoring and Assessment. Kluwer Academic Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Environmental Monitoring and Assessment. Dordrecht, Holanda: Kluwer Academic Publishers, 1981.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Environmental Monitoring and Assessment. Kluwer Academic Publishers, 1981.
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