TY  - BOOK
AU  - Hoffmann, Laurence D
TI  - Calculus for business, economics, and the social and life sciences (4th ed.)
SN  - 0070293341
AV  - QA 303 Hof 
PY  - 1989///
CY  - New York
PB  - McGraw-Hill
KW  - CALCULUS
ER  -