TY  - GEN
AU  - Goldberg,Samuel
TI  - Introduction to difference equations: with illustrative examples from economics, psychology, and sociology 
U1  - 515.625 22
PY  - 1961///
CY  - New York
PB  - John Wiley & Sons, Inc.
KW  - Difference equations
KW  - BUEsh
KW  - Social sciences
KW  - Mathematical models
N1  - Includes bibliographical references and index

ER  -