TY - BOOK AU - Polking,John C. AU - Boggess,Albert AU - Arnold,David TI - Differential equations SN - 0131437380 AV - QA371 .P565 2006 U1 - 515/.35 22 PY - 2006/// CY - Upper Saddle River, N.J. PB - Pearson Prentice Hall KW - Differential equations N1 - Includes index ER -