000 00281nam a2200109Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aNature
_bA weekly journal of science
260 _c1959
_bMacmillan And Co. Ltd.
_aNew York
300 _bV.184
942 _cJRBV
999 _c21799
_d21799