Columbia subject headings:
Harvard subject headings:
Black people--Ecuador--Chota River Valley--Social conditions.
Black people--Mira River Valley (Ecuador and Colombia)--Social conditions.
Jesuits--Ecuador--History.
Slave labor--Ecuador--Chota River Valley--History.
Slave labor--Mira River Valley (Ecuador and Colombia)--History.
Sugarcane industry--Ecuador--Chota River Valley--History.
Sugarcane industry--Mira River Valley (Ecuador and Colombia)--History.
Princeton subject headings:
Agriculture--Economic aspects--Ecuador--Carchi (Province)--History.
Carchi (Ecuador)--Economic conditions.
Carchi (Ecuador)--Rural conditions.
Jesuits--Ecuador--Carchi--History.