000 00293nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aScience
260 _aAmerican association for the advancement of science
_bWashington
_c1 Jun-30 Jun,1996
362 _a272-272
_b5267-5270
942 _2ddc
_cJ
999 _c191002
_d191002