Unclassified documents. UCLA-247. Soil-plant interrelationships with respect to uptake of fission products: 1, Uptake of Sr90, Cs137, Ru160, Ce144, and Y91 [with list of references]; by James W. Ned, Barbara E. Gillooly, Jon H. Olafson, Hideo Nishita, Allen J. Steen, Kermit H. Larson.