Applied Finite Mathematics / 
Hoffmann, Lowrence D. ; Bradley, Gerald L. 
 - 2nd. edition 
 - New York :  McGraw-Hill Inc.  1979. 
 - xvii , 514 p.  ill. col.  24 cm. 
<br/><br/><label>ISBN: </label>0070293546 
<br/><br/><label>LC Class. No.: </label>QA39.2  / .H63  1979