01232cam a22002891 4500 l 33000004 DLC 20260227111534.0 890810s1933 dcu 000 0 eng l 33000004 (OCoLC)20156043 DLC PEL PEL OCoLC DLC premarc HD4966.A42 U7 1931 United States. Bureau of Labor Statistics. Wages and hours of labor in air transportation, 1931 ... January, 1933. Washington, U.S. Govt. print. off., 1933. iii, 41 p. 23 cm. Bulletin of the United States Bureau of labor statistics, no. 575. Wages and hours of labor series At head of title: United States Department of labor. W. N. Doak, secretary. Bureau of labor statistics. Charles E. Baldwin, acting commissioner. Issued also as House doc. 393, 72d Cong., 1st sess. "Appendix: Air transportation occupational terms, definitions, and classification ...": p. 34-41. Aeronautics United States. Wages United States. Hours of labor United States. Aeronautics, Commercial Employees. 36078 36078