Derrick ,William R. <br/><br/>
A First Course In Differentials Equations With Applications 
/ by Willim R.Derrick & Stanley I. Grossman 
 - 3rd ed. 
 - Delhi:  CBS Publishers & Distributors,  1989. 
 - xv,A68p. 
<br/><br/><label>Dewey Class. No.: </label>515.352  / DER/A