000 00356nam a2200133Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
100 _aPhilip H. Abelson
245 0 _aScience
260 _c7 April, 1972
_bThe Americam Association For The Advancement Of Science
_aWashington
300 _aP.1-1452
300 _bV.176
942 _cJRBV
999 _c21762
_d21762