00425nam a22001217a 4500020001800000082002000018100002200038245010100060260003600161300001900197490006000216650002700276  a9780070616097  a515.35  bSIM/D  aSimmons, George F  aDifferential equations:bTheory, technique and   practice/cGeorge F Simmons and Steven G Krantz  aNew Delhi:bMcGraw Hill,c2013.  a534p. ;b18cm.  aThe walter rudin student series in advanced mathematics  aDifferential Equations