000 00398nam a2200133Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
100 _aLawrence Bogorad
245 0 _aProceedings Of The National Academy Of Science Of The United States Of America
260 _cApril 11, 1993
_bNational Academy Of Science
_aU. S. A
300 _aP.3177-3633
300 _bV.91
942 _cJRBV
999 _c29305
_d29305