Cita APA (7th ed.)

Haslam, S. (1991). River pollution: An ecological perspective. CBS Pub.

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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