TY  - BOOK
AU  - McConnel,Campbell R.
TI  - Economics: principles, problems, and policies 
SN  - 0070449058
PY  - 1975///
CY  - New York
PB  - McGraw-Hill
KW  - Economics
N1  - "Formerly published under the title of "Elementary economics: principles, problems, and policies"
ER  -