por Zill, Dennis G, 1940- [autor] | Zill, Dennis G, 1940-. Differential equations with boundary-value problems | Wright, Warren S [autor] | Ibarra Escutia, Joel [autor] | Cullen, Michael R [autor] | García Hernández, Ana Elizabeth [traductor,].
por Edwards, C. H. (Charles Henry), 1937- [autor] | Penney, David E [autor] | Consuelo Hidalgo y Mondragón, María del [traductor] | Edwards, C. H. (Charles Henry), 1937-. Elementary differential equations with boundary value problems.