LEADER 01003nam0-22003011i-450- 001 990003985100403321 005 20031209130142.0 035 $a000398510 035 $aFED01000398510 035 $a(Aleph)000398510FED01 035 $a000398510 100 $a20031209d1968----km-y0itay50------ba 101 0 $aeng 102 $aAT 105 $ay---j---001y- 200 1 $aIsotope studies on the nitrogen chain$eproceeding of the symposium on the use of isotopes in studies of nitrogen metabolism in the soil plant animal system$fInternational atomic energy agency 210 $aVienna$cInternational atomic ecergy agency$d1968 215 $a342 p.$d24 cm 610 0 $aAlimenti$aContaminazione 676 $a664.07 710 02$aInternational Atomic Energy Agency$012873 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990003985100403321 952 $a60 664.802 88 B 23$b9057$fFAGBC 959 $aFAGBC 996 $aIsotope studies on the nitrogen chain$9474169 997 $aUNINA