Columbia subject headings:
Africa, West--Discovery and exploration.
Explorers--Africa, West--Biography.
Niger River.
Park, Mungo, 1771-1806.
Harvard subject headings:
Africa, West--Discovery and exploration.
Explorers--Africa, West--Biography.
Niger River.
Park, Mungo, 1771-1806.
Princeton subject headings:
Africa, West--Discovery and exploration.
Explorers--Africa, West--Biography.
Niger River.
Park, Mungo, 1771-1806.