Buck, R. Creighton  1920- <br/><br/>
Introduction to differential equations / 
R. Creighton Buck, in collaboration with Ellen F. Buck. 
 - Boston :  Houghton Mifflin,  c1976. 
 - x, 356, 62 p. :  ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0395206545 
<br/><br/><label>LCCN: </label>75025009 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.