Piaggio, H. T. H. <br/><br/>
An elementary treatise on differential equations and their applications, 
by H. T. H. Piaggio ... 
 - London,  G. Bell and Sons, ltd.,  1985 
 - xvi, 216, xxv p.  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / PID 1985