00997nam--2200325---450-99000325368020331620090525133553.00-471-31051-4000325368USA01000325368(ALEPH)000325368USA0100032536820090525d1958----km-y0itay50------baengUSa---||||001yyintroduction to difference equationswith illustrative examples from economics, psycology, and sociologySamuel GoldbergNew York [etc.]John & Wileycopyr. 1958XII, 260 p.graf.21 cmEquazioni differenziali515.38GOLDBERG,Samuel57878ITsalbcISBD990003253680203316515.38 GOL7781/CBS515.3800221782BKSCIRSIAV79020090525USA011335Introduction to difference equations332100UNISA