Martin, William Ted. <br/><br/>
Elementary differential equations / 
by William Ted Martin and Eric Reissner. 
 - Massachusetts :  Addision-Wesley publishing co.,  c1956 [printing 1958]. 
 - xi, 260 p. :  ill. ;  22 cm. 
 - Addision-wesley mathematics series. .
 - Addision-wesley mathematics series. .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / MAE 1958