1. The effect of soils and fertilizers on human and animal nutrition;Allaway,1975
2. The form of selenium in some vegetation;Beath;Wyo., Agric. Exp. Stn. Bull.,1947
3. Environmental Chemistry of the Elements;Bowen,1979
4. Trace metal accumulations in tissues of goats fed silage produced on sewage sludge-amended soil;Bray;J. Environ. Qual.,1985
5. Environmental chemistry of selenium;Burau;Calif. Agric.,1985