000 00293nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aScience
260 _aAmerican association for the advancement of science
_bWashington
_c1 Feb-28 Feb,1997
362 _a275-275
_b5301-5304
942 _2ddc
_cJ
999 _c187372
_d187372