Gillespie, R. P. <br/><br/>
Partial differentiation / 
R. P. Gillespie 
 - 2nd ed. 
 - New York :  Interscience Publishers,  1951 
 - 105 p. ;  19 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions.
<br/><br/><label>Dewey Class. No.: </label>515.33  / GIP 1954