TY  - BOOK
AU  - Mansfield,Edwin
TI  - Study guide for economics: principles, problems, decisions 
SN  - 0393951189
AV  - HB171.5 .M266 1980
U1  - 330 
PY  - 1980///
CY  - New York
PB  - Norton
KW  - Economics
N1  - Includes bibliographical references and index
ER  -