Columbia subject headings:
Child labor--Peru--Statistics.
Child labor--Peru.
Teenagers--Employment--Peru--Statistics.
Teenagers--Employment--Peru.
Harvard subject headings:
Child labor--Peru--Statistics.
Child labor--Peru.
Teenagers--Employment--Peru--Statistics.
Teenagers--Employment--Peru.
Princeton subject headings:
Child labor--Peru--Statistics.
Child labor--Peru.
Teenagers--Employment--Peru--Statistics.
Teenagers--Employment--Peru.