00402nam a2200157Ia 4500 9781498736053 515.352 WIR/C Wirkus Stephen, A Course In Differential Equations With Boundary Value Problems 2 ND ED. Crc Press London 2017 767p Differential Equations Swift Randall, J BK 6137 6137 0 0 0 0 MAT GBCTL GBCTL F19 2024-01-03 515.352 WIR/C 65562 BK