APA Edition Citation

Alloway, B. J., & Ayres, D. C. (1993). Chemical principles of environmental pollution.

Chicago Edition Citation

Alloway, B J., and D C. Ayres. Chemical Principles of Environmental Pollution. London : Blackie, 1993.

MLA Edition Citation

Alloway, B J., and D C. Ayres. Chemical Principles of Environmental Pollution. 1993.