Derrick, William R. <br/><br/>
Elementary differential equations with applications / 
William R. Derrick, Stanley I. Grossman 
 - 2nd ed. 
 - Reading, Mass. :  Addison-Wesley,  1981 
 - xii, 594 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0201031620 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations