TY  - BOOK
T1  - Introduction to difference equations, with illustrative examples from economics, psychology, and sociology.
A1  - Goldberg, Samuel
LA  - English
PP  - New York
PB  - Wiley
YR  - 1958
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217607438672
OP  - 260
CN  - QA 431 G59
KW  - Difference equations.
KW  - Social science : Mathematical models.
ER  -