Columbia subject headings:
Andes--In art.
Art, Ecuadorian--History.
Artists--Ecuador--Biography.
Landscape painting, Ecuadorian--19th century.
Landscape painting, Ecuadorian--20th century.
Mountains in art.
Painters--Ecuador--Biography.
Painting, Ecuadorian--History.
Portrait painting, Ecuadorian--19th century.
Portrait painting, Ecuadorian--20th century.
Troya, Rafael, 1845-1920.
Harvard subject headings:
Troya, Rafael, 1845-1920--Criticism and interpretation.
Princeton subject headings: