1. APHA (American Public Health Association). 1985. Standard methods for the examination of water and wastewater, 16th ed. American Water Works Association, Water Pollution Control Federation. Washington, DC. 1268 pp.
2. Bell, R. 1956. Aquatic and marginal vegetation of strip mine waters in southern Illinois.Transactions of the Illinois Academy of Science 48:85–91.
3. Bohn, H. L., B. L. McNeal, and G. A. O'Connor. 1985. Soil chemistry. John Wiley & Sons, New York. 341 pp.
4. Bosserman, R. W., and P. L. Hill, Jr. 1985. Community ecology of three wetland ecosystems impacted by acid mine drainage. Pages 287–303in R. P. Brooks, D. E. Samuel and J. B. Hill (eds.), Wetlands and water management on mined lands. Proceedings of a conference. The Pennsylvania State University, University Park, Pennsylvania.
5. Brady, N. C. 1974. The nature and properties of soils. Macmillan, New York. 639 pp.