Columbia subject headings:
Cost and standard of living--Canada--Statistics--Periodicals.
Cost and standard of living--United States--Statistics--Periodicals.
Wages--Canada--Statistics--Periodicals.
Wages--United States--Statistics--Periodicals.
Harvard subject headings:
Cost and standard of living--Canada--Statistics--Periodicals.
Cost and standard of living--United States--Statistics--Periodicals
Wages--Canada--Statistics--Periodicals
Wages--United States--Statistics--Periodicals
Princeton subject headings:
Cost and standard of living--Canada--Statistics--Periodicals.
Cost and standard of living--United States--Statistics--Periodicals.
Periodicals.
Statistics.
Wages--Canada--Statistics--Periodicals.
Wages--United States--Statistics--Periodicals.