Ayres, Frank Schaum's outlines of theory and problems of differential equations in SI metric units - New york McGraw Hill international Book Company 1952 - 295 p. : ill. ; 27 cm ISBN: (pbk) Subjects--Topical Terms: Differential equations--Geometric applications--Differential equations--Physical applications--Initial value--Numerical methods--Basic concepts--Graphical methods--Matrices--FC Dewey Class. No.: 515.35 / AYR