1. American Public Health Association, American Water Works Association, Water Pollution Control Federation (1980) Standard methods for the examination of water and waste-water, Washington: APHA, 1193 pp
2. Black CA, Evans DD, White JL, Engmigler LE, Clark FE (1965) Methods of soil analysis, parts 1 & 2, American Society of Agronomy, Madison, WI, 1572 pp
3. Calderbank A, Slade P (1976) Diquat and paraquat, In: Kearney PC, Kaufman DD (eds) Herbicides: 2nd ed. Marcel Dekker Inc, New York, pp 501?540
4. Environmental Protection Agency (1979) Water-related environmental fate of 129 priority pollutants. US EPA 440/4-79-0296, Washington, DC
5. Hall WS, Leslie TJ, Dickson KL (1986) Effects of suspended solids on the biotransformation of acenaphthene. Bull Environ Contam Toxicol 36:286?293