00485    a2200157   4500001000700000003000400007005001700011008004100028082001700069100002400086245011000110260002300220300001000243653005200253700002200305002471OSt20220127121107.0                                          a515.35bB69E1 aDiprima, Richard C.1 aElementary differential equations and boundary value problemscby Richard C. Diprima and E. William Boyce  aIndiabWileyc2010  a796p.  aDifferential equations; Boundary value problems  aBoyce, E. William