Haslam, S. (1991). River pollution: An ecological perspective. CBS Pub.
Chicago-čujuhus (17. p.)Haslam, S.M. River Pollution: An Ecological Perspective. Delhi: CBS Pub, 1991.
MLA-čujuhus (9. p.)Haslam, S.M. River Pollution: An Ecological Perspective. CBS Pub, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.