000 00365nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aProceedings Of The National Academy Of Sciences Of The United States Of America
260 _cFebruary, 1984
_bNational Academy Of Science
_aU. S. A
300 _aP.983-2274
300 _bV.81
942 _cJRBV
999 _c21530
_d21530