APA način citiranja

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

Čikaški stil citiranja

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

MLA način citiranja

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

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