00562cam a22002051 4500 l 56000148 DLC 20260227111545.0 790905s1956 dcua f000 0 eng l 56000148 (OCoLC)5343399 DLC ArU DLC premarc HD8051.A9 L4 United States. Department of Labor. The American worker's fact book. [Washington] 1956. xv, 433 p. illus. 24 cm. Labor and laboring classes United States. 36926 36926