Columbia subject headings:
Cotopaxi (Ecuador)--Social conditions.
Imbabura (Ecuador)--Social conditions.
Indians of South America--Ecuador--Pictorial works.
Indians of South America--Ecuador--Social conditions.
Indians of South America--Ecuador--Social life and customs.
Quechua Indians--Pictorial works.
Quechua Indians--Social conditions.
Quechua Indians--Social life and customs.
Harvard subject headings:
Cotopaxi (Ecuador)--Social conditions.
Imbabura (Ecuador)--Social conditions.
Indians of South America--Ecuador--Pictorial works.
Indians of South America--Ecuador--Social conditions
Indians of South America--Ecuador--Social life and customs
Quechua Indians--Pictorial works.
Quechua Indians--Social conditions
Quechua Indians--Social life and customs
Princeton subject headings: