APA Style

HELLAWELL, J.M.. (1989). Biological Indicators of Freshwater Pollution and Environmental Management (Ed. 1, cet. 1). London: Elsevier Publishing Company.

Chicago Style

HELLAWELL, J.M.. Biological Indicators of Freshwater Pollution and Environmental Management. Ed. 1, cet. 1 London: Elsevier Publishing Company, 1989. Text.

MLA Style

HELLAWELL, J.M.. Biological Indicators of Freshwater Pollution and Environmental Management. Ed. 1, cet. 1 London: Elsevier Publishing Company, 1989. Text.

Turabian Style

HELLAWELL, J.M.. Biological Indicators of Freshwater Pollution and Environmental Management. Ed. 1, cet. 1 London: Elsevier Publishing Company, 1989. Print.