00720nam a2200229Ia 4500 113286 BIBL 20170223064018.0 730522s1958 nyu b 00000 eng 58010223 /L/r79 EVLG QA431 .G59 515/.625 517.6 G618i Goldberg, Samuel 228779 Local Introduction to difference equations with illustrative examples from economics, psychology, and sociology. New York Wiley [1958] 260 p. 24 cm. Includes bibliography. Difference equations. 217474 Local 171848 Social sciences Mathematical models. Local 94630 94630 0 0 0 517_600000000000000_G618I 0 evl 29368 10 10 1 2016-05-27 173164 0 517.6 G618i 80000001218760 2016-05-27 00:00:00 r:113286 z:NCC:D 6