000 00333nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aProceedings Of The National Academy Of Science
260 _cNovember, 1983
_bNational Academy Of Science
_aU. S. A
300 _aP.6735-7818
300 _bV.80
942 _cJRBV
999 _c21633
_d21633