000 00315nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aScience
260 _c1971
_bThe American Association for the Advancement of Science
_aWashington
300 _aP. 1-1372
300 _bV. 172
942 _cJRBV
999 _c18263
_d18263