TY  - BOOK
AU  - Mansfield,Edwin
TI  - Economics: principles, problems, decisions
SN  - 0393091120
AV  - HB171.5 .M266 1977
U1  - 330 
PY  - 1977///
CY  - New York
PB  - Norton
KW  - Economics
KW  - Local
N1  - Includes bibliographical references and index
ER  -