TY  - BOOK
AU  - Spiegel, Murray R
TI  - Schaum's outline of theory and problems of calculus of finite differences and difference equations
U1  - R  515.3  SPI-S2 
PY  - 1971///
CY  -  New York
PB  - McGraw-Hill book Co, Inc
KW  - Differential calculus-- Analysis-- Mathematics
ER  -