Columbia subject headings:
America--Discovery and exploration--Italian.
Discoveries in geography--Italian.
Explorers--America.
Explorers--Italy.
Harvard subject headings:
America--Discovery and exploration--Italian.
Discoveries in geography--Italian.
Explorers--America
Explorers--Italy.
Princeton subject headings:
America--Discovery and exploration--Italian.
Discoveries in geography--Italian.
Explorers--America.
Explorers--Italy.