[1] . Gaimomd RJ,PB-288743.
[2] . Spalding R F,et al:Science 175 (4022):629,1972.
[3] . Boothe G F Health phys 32:285,1977.
[4] . Menzel RG,J Agric Food Chem 16:231,1968.
[5] . Osbarn WS. Health Phys 11:1275,1965.
[6] . Franca EP,et al: ACE-NYO-3273-11l,1968.
[7] . Talibudoen O:Soil Fert 27: 347,1964.
[8] . NUSCEAR Report of 1977,Annex B,P89-92.
[9] . Roessler CE,et al. Health Phys 37:269,1979.
[10] . NCRP Report No,45,Natural background radiation in USA,1975.
[11] . Reid DF,et al:Health Phys 32: 535,1977.
[12] . Tze-Yu Wu,et al:Radioisotopes 27:460,1978.
[13] . McNabb GJ,et al:Health Phys 37:585,1979.
[14] . Marsden E,et al:Nature 183:924,1959.
[15] . Lindeken CL,PB-288743.
[16] . Tso TC,et al:Science 146: 1043,1964.
[17] . Menzel RG,Health Phys 11: 1325,1965.
[18] . UNSCEAR Report of 1972.
[19] . Hoyt GD,et al:J Environ Qual 8:292,1979.
[20] . Telfair D,et al:Science 131: 727,1960.
[21] . Schulz RK,Health Phys 11: 1317,1965.
[22] . Nishita H,et al. PB-287431.
[23] . Delaney MS,Health Phys 34: 492,1978.
[24] . Folwer EB,Radioactive fallout soilsplants food man,Amsterdam,Elsevier 1965.
[25] . Mistry KB,et al:Health Phys 11:1459,1965.
[26] . Richard J,et al: Health Phys 35:874,1978.
[27] . Marsden E,et al: Nature 187: 192,1960.
[28] . Bortoli M D: Health Phys 22:43,1972.
[29] . Handl J. Health Phys 38:703,1980.
[30] . Strain CD,et al:Health Phys 37: 779,1979.
[31] . Slmpson RE,et al:Health Phys 36:919,1978.
[32] . Evans RD,et al: Health Phys 27: 497,1974.