McEldowney, S., Hardman, D. J., & Waite, S. (1993). Pollution: Ecology and biotreatment. Longman Scientific & Technical.
Cita Chicago (17th ed.)McEldowney, Sharron, David J. Hardman, i Stephen Waite. Pollution: Ecology and Biotreatment. Harlow, Essex, England: Longman Scientific & Technical, 1993.
Cita MLA (9th ed.)McEldowney, Sharron, et al. Pollution: Ecology and Biotreatment. Longman Scientific & Technical, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.