Ferrar, W. L. (William Leonard), 1893-  Ferrar, W. L. (William Leonard), 1893- <br/><br/>
Differential calculus (from corrected sheet of the first ed.). 

 -  Oxford University Press : English Language Book Society,  Oxford University Press : English Language Book Society,  [1962] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential calculus.