Columbia subject headings:
Augustinians--Missions--Peru--History.
Augustinians--Peru--Biography.
Villarejo, Avencio.
Harvard subject headings:
Amazon River Region--Description and travel.
Indians of South America--Missions--Peru--Loreto (Department)
Indians of South America--Missions--Peru--Loreto (Dept.)
Iquitos (Peru)--History.
Loreto (Peru : Department)--Description and travel.
Loreto (Peru : Department)--Social conditions.
Missions--Peru--Loreto (Department)
Missions--Peru--Loreto (Dept.)
Villarejo, Avencio.
Princeton subject headings: