Trích dẫn APA

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

Trích dẫn kiểu Chicago

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

Trích dẫn MLA

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

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.