Piaggio, H. T. H. <br/><br/>
An elementary treatise on differential equations and their applications / 
by H. T. H. Piaggio. 
 - Bombay :  Orient longman,  1920 [impression 1973]. 
 - xviii,256 p. :  ill. ;  22 cm. 
 - Bell's mathematical series. .
 - Bell's mathematical series. .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / PIE 1973