Ayres, Frank Schaum's Outline of Theory and Problems of Differential Equations (182) - SI Metric - New York : McGraw-Hill International Book, c1972 - 295p. : ill - Schaum'S Outline Series . Includes Index ISBN: 070843961 ISSN: Subjects--Topical Terms: Equation theory Dewey Class. No.: 515.3501 / AYR