Derrick, William R. <br/><br/>
Introduction to differential equations :  with boundary value problems / 
William R. Derrick, Stanley J. Grossman. 
 - 3rd ed. 
 - St. Paul :  West Pub. Co.,  1987. 
 - 554 p. ;  26 cm. 
<br/><br/> Rev ed. of : Elemantary differential equations with applications 
<br/><br/>Include bibliographical references and index. 
<br/><br/><label>ISBN: </label>0314268979 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Boundary value problems.