Columbia subject headings:
Land settlement--Peru--Oriente--Congresses.
Oriente (Peru)--Population--Congresses.
Harvard subject headings:
Land settlement--Peru--Oriente--Congresses.
Oriente (Peru)--Population--Congresses.
Princeton subject headings:
Land settlement--Peru--Oriente--Congresses.
Oriente (Peru)--Population--Congresses.