TY  - BOOK
AU  - Mansfield,Edwin
TI  - Economics: principles, problems, decisions
SN  - 039309314X
AV  - HB171.5 .M266
U1  - 330 
PY  - 1974///]
CY  - New York
PB  - Norton
KW  - Economics
KW  - Local
N1  - Includes bibliographical references
ER  -