1. AMES, B.N., D. McCANN, and E. YAMASKAI: Mut. Res.31, 347 (1975).
2. COLEMAN, W.E., R.G. MELTON, F.C. KOPFLER, K.A. BARONE, T.A. AURAND, and M.G. JELLISON: Environ. Sci. Technol.14, 576 (1980).
3. COMMONER, B: EPA-600/1-76-022 (1976).
4. EPA: Subtitle C: Resources Conservation and Recovery Act of 1976; Draft Environmental Impact Statement. Office of Solid Waste, EPA. Washington, D.C. (1979).
5. EPLER, J.L., J.A. YOUNG, D.A. HARDIGREE, T.K. RAO, M.R. GUERIN, I.B. RUBIN, C.H. HO and B.R. CLARK: Mut. Res.57, 265 (1978).