000			00372pam a2200145a 44500
082			_a517 _bR39i
100			_aRichardson, Clarence Hudson
245	1		_aAN INTRODUCTION TO THE CALCULUS OF FINITE DIFFERENCES
260			_aPrinceton _bVan Nostrand _c1954
300			_a142
650			_aCalculus
650			_aDifference Equations
964			_gCIRC
997			_a7367 C
999			_c428556 _d428556