U.S. G.P.O , For sale by the Supt. of Docs., U.S. G.P.O.
1943-
Bulletin / Bureau of Labor Statistics
no. 735, 778, 816, 914, 936, 954, 977, 1014, 1053, 1123
June 1, 1942 , July 1, 1943 , July 1, 1944 , July 1, 1946 , July 1, 1947 , July 1, 1948 , July 1, 1949 , July 1, 1950 , July 1, 1951 , July 1, 1952
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