TY  - BOOK
AU  - Levy,H .
AU  - Lessman,F  .
TI  - Finite difference equations / 
SN  - 0486672603
U1  - 515.625 
PY  - 1992///
CY  - New York : 
PB  - Dover publication , 
KW  - MATHEMATICS
N1  - Includes index
ER  -