00568    a2200193   4500001000700000003000400007005001700011008004100028020001800069082001700087100002200104245011000126260003300236300001000269653001600279653002800295653002700323700002400350151241OSt20211221110317.0                                          a9788126521555  a515.35bB69E1 aBoyce, William E.1 aElementary differential equations and boundary value problemscby William E. Boyce and Richard C. Diprima  aNew DelhibWiley Indiac2014  a796p.  aMathematics  aBoundary value problems  aDifferential equations  aDiprima, Richard C.