TY  - BOOK
AU  - Byrkit, Donald R.
AU  - Shamma, Shawky E.
TI  - Calculus: for business and economics
U1  - 515.02433 / 515.024658 
PY  - 1981///
CY  - New York 
PB  - D. Van Nostrand
KW  - Analysis
ER  -