TY - BOOK AU - Zill,Dennis G. AU - Cullen,Michael R. TI - Differential equations with boundary-value problems SN - 0534380026 (alk. paper) U1 - 515.35 22 PY - 2001/// CY - Australia, Pacific Grove, CA PB - Brooks/Cole Thomson Learning KW - Differential equations KW - Boundary value problems N1 - Includes index ER -