Derrick, William R. <br/><br/>
Elementary differential equations / 
William R. Derrick, Stanley I. Grossman. 
 - 4th ed. 
 - Reading, MA :  Addison-Wesley,  c1997. 
 - 1 v. (various pagings) : ill. 
<br/><br/> Abridged of: Elementary differential equations with boundary value problems. 4th ed. 1996.  Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations