Columbia subject headings:
America--Discovery and exploration.
United States--History--Colonial period, ca. 1600-1775.
Harvard subject headings:
America--Discovery and exploration--Juvenile literature.
America--Discovery and exploration.
Explorers--Juvenile literature
United States--History--Colonial period, ca. 1600-1775--Juvenile literature.
United States--History--Colonial period, ca. 1600-1775.
Princeton subject headings:
America--Discovery and exploration.
United States--History--Colonial period, ca. 1600-1775.