Piaggio, H. T. H. <br/><br/>
An elementary treatise on differential equations and their applications /  
H. T. H. Piaggio. 
 - Bombay :   Orient Longman.,  c1920. 
 - xviii,266 p. :  ill. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.<br/>Mathematics.
<br/><br/><label>Dewey Class. No.: </label>515.35/PIE