Columbia subject headings:
Geographers--Italy--Biography.
Geography--Early works to 1800.
Ramusio, Giovanni Battista, 1485-1557. Navigazioni e viaggi.
Voyages and travels--Early works to 1800.
Harvard subject headings:
Discoveries in geography--Italian--History--16th century.
Ramusio, Giovanni Battista, 1485-1557. Navigazioni e viaggi
Princeton subject headings: