Boyce, William E. Elementary differential equations / by William E. Boyce and Richard C. DiPrima. - 8th ed. - New Jersey : John Wiley & Sons, 2005. - xviii, 622 pages : illustrations ; 28 cm. ISBN: 047143339x Subjects--Topical Terms: Differential equationsBoundary value problems LC Class. No.: QA371 / B69 2005