APA ציטוט

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

Chicago Edition Citation

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

ציטוט MLA

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