Technology and labor in three service industries :
utilities, retail trade, and lodging.
Washington, D.C. : U.S. Dept. of Labor, Bureau of Labor Statistics, 
Hotels / Technological innovations /
Labor supply > Labor supply / United States > Labor supply / United States / Effect of technological innovations on.
Retail trade > Retail trade / Technological innovations > Retail trade / Technological innovations / United States.
Electric utilities > Electric utilities / Technological innovations > Electric utilities / Technological innovations / United States.
v, 36 p. :
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