TY  - BOOK
AU  - CASE Karl E
AU  -  FAIR Ray C
AU  -  OSTER Sharon M
TI  - Principles of economics
SN  - 9781292294698
U1  - X, P7;R0 
PY  - 2020///
CY  - Harlow
PB  - Pearson          
N1  - Bibliography: 87-88p
ER  -