Derrick, William R. <br/><br/>
Elementary differential equations with applications / 
William R. Derrick, Stanley I. Grossman 
 - Reading, Mass. :  Addison-Wesley,  1976 
 - x, 537 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations