000 00329nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aScience
260 _cSeptember 5, 1969
_bThe American Association for the Advancement of Science
_aWashington
300 _aP. 939-1384
300 _bV.356
942 _cJRBV
999 _c19721
_d19721