Productivity of labor series
U.S. G.P.O
Productivity of labor
by Boris Stern
U.S. G.P.O. , For sale by the Supt. of Docs., U.S. G.P.O. 1933 Bulletin / Bureau of Labor Statistics no. 585 , Productivity of labor series
所蔵館4館
[prepared by S. Kjaer]
U.S. G.P.O. 1929 Productivity of labor series , Bulletin / Bureau of Labor Statistics no. 475
所蔵館7館
[prepared by Boris Stern]
U.S. G.P.O. 1927 Productivity of labor series , Bulletin / Bureau of Labor Statistics no. 441
所蔵館5館