TY  - BOOK
TI  - Productivity trends in the United States
SN  - 0405075723
AV  - HC110.L3 
PY  - 1975///.
CY  - New York
PB  - Arno Press
KW  - Labor productivity, United States
N1  - Reprint of the ed. published by Princeton University Press, Princeton, N.J., which was issued as no. 71 of the National Bureau of Economic Research general series.
ER  -