TY  - BOOK
ED  - Conference on Research in Income and Wealth.
ED  - National Bureau of Economic Research, N.Y.
TI  - Output, input and productivity measurement: : a report of the National Bureau of Economic Research
T2  - Its studies in income and wealth
U1  - 338.7 
PY  - 1961///
CY  - Princenton
PB  - University Press
KW  - Productividad
ER  -