Lawden, Derek F. <br/><br/>
Mathematics of engineering systems;  linear and non-linear. 

 - London:  New York:  Methuen,  Wiley,  [1954]. 
 - 380 p.:  illus.,  23 cm. 
<br/><br/><label>LCCN: </label>55000474 /L/r85 
<br/><br/><label>Nat. Bib. No.: </label>GB54-15412 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Fourier series.
<br/><br/><label>Dewey Class. No.: </label>519  / L416m