Cita APA

Haslam, S. (1991). River Pollution: An Ecological Perspective. CBS colllege.

Citación estilo Chicago

Haslam, S.M. River Pollution: An Ecological Perspective. Delhi: CBS colllege, 1991.

Cita MLA

Haslam, S.M. River Pollution: An Ecological Perspective. CBS colllege, 1991.