000 00340nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aProceedings Of National Academy of Sciences of The United States Of America
260 _c1989
_bPergamon Press
_aNew York
300 _aP.5217-6440
300 _bV.86
942 _cJRBV
999 _c26438
_d26438