TY  - BOOK
AU  - Bellman, Richard and Cooke, K. L.
AU  - Cooke, K. L. ; jt. auth.
TI  - Differential-difference equations
T2  - Mathematics in Science and Engineering
U1  - 515.35 
PY  - 1963///
CY  - New York
PB  - Academic Press
ER  -