1. Field evaluation on land treatment of tannery sludges;Ho;Proc. EPA 8th Annu. Res. Symp. Ft. Mitchell, KY,81982
2. Chromium migration through sludge-treated soils;Dreiss;Groundwater,1986
3. Federal Register Vol.45, No. 98, 1980, Government Printing Office, Washington, DC, pp. 33084–33139.
4. a Federal Register, Vol. 45, No. 220, 1980, Government Printing Office, Washington, DC, pp. 74884–74894
5. Effect of pH on adsorption of chromium from landfill-leachate of clay minerals;Griffin;J. Environ. Sci. Health,1977