Harshbarger, Ronald J.,  1938. <br/><br/>
Mathematical applications for the management, life, and social sciences / 
Ronald J. Harshbarger, James J. Reynolds. 
 - 4th ed. 
 - Lexington, Mass. :  D. C. Heath and Company,  1992 
 - 84 p. ;  24 cm. 
<br/><br/><label>ISBN: </label>0669278823 
<br/><br/><label>LCCN: </label>91-071286