Hille, Einar,  1894- <br/><br/>
First-year calculus / 
Einar HIlle, Saturnino L. Salas 
 - Waltham, Mass. : Ginn and Co., 1968 
 - xi, 415 p. :  ill. ;  26 cm. 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus