ll. Snedecor, G. W., and W. G. Cochran. 12. Tinney, J. F. 1968. "Calibration of X-Ray Sensitive Plutonium Detector.” In: Hazards Control Progress Report No. 31 (May-August). Iowa State University Press, Ames, 1967. Iowa. Stattsttcal Methods. Lawrence Livermore Laboratory, University of California, Livermore, California. 13. TID-4500, UCRL-50007~-68-2. Wallace, A., and E. M. Romney. 1977. "The Particle Size Problem in the Assay of Plutonium in Field Soil Samples." In: Transurantcs tn Desert Ecosystems. M. G. White, P. B. Dunaway, and D. L. Wireman (Eds.). USDOE Report, NVO-181. pp. 41-52. 438