000			00357nam a2200121Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aMurray And Spiegel
245		0	_aSchaum`S Series-Theory And Problems Of Calculus Of Finite Differences And Difference Equations
260			_bMcgraw -hill _c1971
300			_a259p
650			_aMathematics
942			_cBK
999			_c30889 _d30889