TY  - BOOK
AU  - Alt,James E.
AU  -  Kenneth A.Shepsle
TI  - Perspectives on positive political economy
AV  - HB99.S47 
PY  - 1990///
CY  - New York
PB  -  : Cambridge University Press
KW  - Institutional economics,
KW  - Congresses,
KW  - Social choice
ER  -