Columbia subject headings:
Accidents--Prevention--Bibliography--Periodicals.
Accidents--Prevention--Periodicals.
Industrial appliances--Periodicals.
Safety appliances--Periodicals.
Working class--Accidents--Periodicals.
Harvard subject headings:
Princeton subject headings:
Accidents--Prevention--Bibliography--Periodicals.
Accidents--Prevention--Periodicals.
Periodicals.
Safety appliances--Periodicals.
Working class--Accidents--Periodicals.