00502nam a2200169Ia 4500003000900000008004100009040001600050080001600066100001700082245010900099250001200208260003200220300001500252650002700267650001900294700001900313IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a517.91bBOY  aBoyce, W. E. 0aElementary differential equations and boundary value problemscWilliam E. Boyce and Richard C. Di Prima.  a3rd ed.  aNew YorkbJohn Wiley & Sons  axiv, 582p.  aDifferential Equations  aNASA Thesaurus  aDiprima, R. C.