TY  - BOOK
AU  - Kelley, Walter G.
AU  - Peterson, Allan C.
TI  - Difference Equations an Introduction with Applications
SN  - 813120233X
U1  - 515.35 KEL 
PY  - 2006///
CY  - New York
PB  - Academic Press
KW  - Differential Equations
ER  -