Columbia subject headings:
Automation--Economic aspects--United States.
Automation--Social aspects--United States.
Technological unemployment--United States.
Harvard subject headings:
Automation--Economic aspects--United States
Automation--Social aspects--United States.
Robotics--Economic aspects--United States.
Robotics--Social aspects--United States.
Robots, Industrial--United States.
Technological unemployment--United States.
Princeton subject headings:
Automation--Economic aspects--United States.
Automation--Social aspects--United States.
Technological unemployment--United States.