000 00293nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aScience
260 _aAmerican association for the advancement of science
_bWashington
_c1 Jul-31 Jul,1992
362 _a256-256
_b5066-5070
942 _2ddc
_cJ
999 _c189872
_d189872