000 00259nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aNature
260 _aLondon
_bMacmillan Magzine Ltd.
_c1 Jun-30 Jun,1987
362 _a327-327
_b6121-6124
942 _2ddc
_cJ
999 _c192115
_d192115