Englewood Cliffs, N.J. Prentice Hall. 1993. Differential equations., Boundary value problems., Equations differentielles 25 cm. xiv, 774 pages : illustrations. Encuadernación en tapa blanda de editorial ilustrada. C. H. Edwards, Jr. , David E. Penney. Prentice-Hall International editions . Cubierta deslucida.