Columbia subject headings:
Defense industries--Employees--Health and hygiene--United States.
Defense industries--United States--Safety measures.
Lifting and carrying--United States.
Women employees--Health and hygiene--United States.
Harvard subject headings:
Defense industries--Employees--Health and hygiene--United States.
Defense industries--United States--Safety measures.
Lifting and carrying
Women employees--Health and hygiene--United States.
Princeton subject headings: