000			00347nam a2200145Ia 4500
008			240201s1991 xx 000 0 eng d
020			_a0802769918
082			_a523.4'82 ASI0
100			_aASIMOV, ISAAC
245		0	_aHOW DID WE FIND ABOUT PLUTO ?
260			_bWALKER AND COMPANY _c1991
300			_a61
650			_aSCIENCE
942			_2ddc _cBK
999			_c5654 _d5654