Forsyth, Andrew Russell,  1858-1942. <br/><br/>
A treatise on differential equations/ 
by A.R. Forsyth. 
 - 6th ed. 
 - London:  Macmillan,  1956. 
 - xviii, 583 p.:  23 cm. 
<br/><br/> "The only differences between the preceding edition and the present edition consist of occasional verbal modifications."--Pref. to the 6th ed. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / F735t