Columbia subject headings:
Households--Peru--Statistics.
Peru--Economic conditions--1968---Statistics.
Peru--Social conditions--1968---Statistics.
Quality of life--Peru--Statistics.
Harvard subject headings:
Families--Economic aspects--Peru--Statistics.
Family life surveys--Peru.
Quality of life--Peru.
Princeton subject headings:
Households--Peru--Statistics.
Peru--Economic conditions--1968---Statistics.
Peru--Social conditions--1968---Statistics.
Quality of life--Peru--Statistics.