Columbia subject headings:
Science--Andes Region--History.
Technology--Andes Region--History.
Traditional medicine--Andes Region--History.
Harvard subject headings:
Engineering--Andes Region--History.
Science--Andes Region--History.
Science--Bolivia--History.
Science--Ecuador--History.
Science--Peru--History.
Technology--Andes Region--History.
Technology--Bolivia--History.
Technology--Ecuador--History.
Technology--Peru--History.
Traditional medicine--Ecuador.
Unanue, José Hipólito, 1755-1833
Princeton subject headings: