000 00318nam a2200121Ia 4500
008 251112s9999||||xx |||||||||||||| ||und||
040 _aCNCLSA
245 0 _aScience
260 _c7 July, 1972
_bThe American Association For The Advancement Science
_aWashington
300 _aP.1-1220
300 _bV.177
942 _cJRBV
999 _c21739
_d21739