Torres, Herminia D. <br/><br/>
Calculus and Analytic Geometry for Business & Economics / 
Herminia D. Torres and Gavino A. Vallar, Jr. 
 - 1st/ed. 
 - Philippines :  National Book Store,  c1984. 
 - x, 412p. :  (np) ;  22cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>971080359X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Analytic geometry--c1984--Philippines--newsprint.<br/>Calculus--c1984--Philippines--newsprint.