Columbia subject headings:
Economic indicators--Peru--Periodicals.
Peru--Social conditions--1968---Statistics--Periodicals.
Peru--Statistics--Periodicals.
Harvard subject headings:
Economic indicators--Peru--Periodicals.
Peru--Economic conditions--1968---Statistics--Periodicals.
Peru--Social conditions--1968---Statistics--Periodicals.
Princeton subject headings:
Peru--Economic conditions--1968---Statistics.
Peru--Social conditions--1968---Statistics.
Peru--Statistics.
Statistics.