1. FERGUSON, D. E., Agr. Chem.18(9), 32 (1963)
2. NAQVI, S. M. and FERGUSON, D. E., J. Mississippi Acad. Sci.14, 121 (1968)
3. FERGUSON, D. E., Amer. Fish. Soc., Reservoir Fish. Resources Symposium, Athens, Georgia, 531 (1968)
4. FERGUSON, D. E. and GILBERT, C. C., J. Mississippi Acad. Sci.13, 135 (1967)
5. WEBB, R. E. and HORSFALL, F., JR., Science156, 1762 (1967)