Columbia subject headings:
Traffic accidents--Europe--Statistics--Periodicals.
Traffic accidents--North America--Statistics--Periodicals.
Traffic safety--Europe--Statistics--Periodicals.
Traffic safety--North America--Statistics--Periodicals.
Harvard subject headings:
Traffic accidents--Europe--Statistics--Periodicals.
Traffic accidents--North America--Statistics--Periodicals.
Traffic safety--Europe--Statistics--Periodicals.
Traffic safety--North America--Statistics--Periodicals.
Princeton subject headings:
Traffic accidents--Europe--Statistics--Periodicals.
Traffic safety--Europe--Statistics--Periodicals.