Columbia subject headings:
Amazon River--Discovery and exploration--Spanish.
Amazon River--Discovery and exploration.
America--Discovery and exploration--Spain.
America--Discovery and exploration--Spanish.
America--Early accounts to 1600.
Orellana, Francisco de, -approximately 1546.
Harvard subject headings:
Amazon River--Discovery and exploration.
America--Discovery and exploration--Spanish.
Orellana, Francisco de, -approximately 1546.
Princeton subject headings:
Amazon River--Discovery and exploration.
America--Discovery and exploration--Spanish.
Orellana, Francisco de, -approximately 1546.