TY  - BOOK
AU  - Phelps E S
AU  - Phelps Charlotte
TI  - Factor price frontier estimation of a 'vintage'production model of the postwar U.S. nonfarm business sector
U1  - 330.18 
PY  - 1965///
CY  - New Haven
PB  - Yale Univ.
KW  - Economic method
ER  -