000			00355nam a2200145Ia 4500
008			240201s1990 xx 000 0 eng d
020			_a0866515038
082			_a510 COR
100			_aCORWIN, REBECCA B. AND RUSSELL, SUSAN JO
245		0	_aUSED NUMBERS
260			_bDALE SEYMOUR PUBLICATIONS _c1990
300			_a79
650			_aMATH
942			_2ddc _cBK
999			_c4962 _d4962