Hoffmann, Laurence D.,  1943- <br/><br/>
Calculus for business, economics, and the social and life sciences / 
 Calculus 
Laurence D. Hoffmann, Gerald L. Bradley. 
 - Seventh 
 - Boston :  McGraw-Hill,  c2000. 
 - xxi, 723 p. :  ill. (some col.), col. maps ;  24 cm.