00645nam a2200181Ia 4500 0000010854 20251012174514.0 941209s1975 nyu 000 0 eng d 0405075723 9780405075728 HC110.L3 331.1180973 Productivity trends in the United States John W. Kendrick. New York Arno Press 1975. ?cm. 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. Labor productivity, United States. 4947 4947