TY  - BOOK
AU  - Koopmans,Tjalling C.
AU  - Koopmans,Tjalling C.
TI  - Three essays on the state of economic science
U1  - 330.108 KOO 
PY  - 1957///
CY  - New York
PB  - McGraw- Hill Book Cmpony
KW  - Three essays on the state of economic science
N1  - Includes Index
ER  -