00494nam a22001817a 4500001001000000003000500010005001700015008004100032010001000073011001000083035001000093040000900103110003600112245004600148260005700194300002100251650004000272000040612CHAP20220329135627.0971013s1960            r     00010     d  a39554  a40526  a44652  cCHAP2 aE.U.A. Atomic Energy Commission10aUses of isotopes in agricultural studies.  aWashington :bU.S. Goverment Printing Office,c1960.  a44 p. :b: ilus.14aEnergía atómica en agricultura.