Ritt, Joseph Fels,  1893-1951. <br/><br/>
Integration in finite terms :  Liouville's theory of elementary methods / 
Joseph Fels Ritt. 
 - New York :  Columbia University Press,  1948. 
 - vii, 100 p. :  ill. ;  22 cm. 
<br/><br/>"References": p. [99]-100. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus, Integral.
<br/><br/><label>Dewey Class. No.: </label>517.3  / RII 1948