AYRES, F. Theory and problems of differential equations in si matric units Frank Ayres; adapted by J.C.Ault - 1st ed. - New Delhi McGraw-Hill 1981 - 295p. - Schaum's outline series . ISBN: 0070990069 USD 2.95 Subjects--Topical Terms: DIFFERENTIAL EQUATIONS PROBLEMS & SOLUTIONS Dewey Class. No.: MATH 515.35076 / AFn81