00422nam a22001457a 450000500170000000800410001702000180005804100080007610000220008424500840010625000120019026000550020230000100025765000090026720190731104225.0190731b        xxu||||| |||| 00| 0 eng d  a9780070530713  aeng  aSimmons, George F  aDifferential Equations With Applications And Historical NotesbGeorge F.Simmons  a2nd ed.  aChennaibMc Graw Hill Education (I) Pvt Ltd.c2018  a629p.  aMATH