APA Edition Citation

Hellawell, J. (1986). Biological Indicaors of Freshwater Pollution and Environmental Management. Elsevier Applied Science.

Chicago Edition Citation

Hellawell, J.M. Biological Indicaors of Freshwater Pollution and Environmental Management. London: Elsevier Applied Science, 1986.

MLA Edition Citation

Hellawell, J.M. Biological Indicaors of Freshwater Pollution and Environmental Management. Elsevier Applied Science, 1986.

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