Columbia subject headings:
Africa, Central--Description and travel.
Africa, East--Description and travel.
Irwin, Aisling--Travel.
Livingstone, David, 1813-1873--Travel.
Wilson, Colum--Travel.
Harvard subject headings:
Africa, Central--Description and travel.
Africa, East--Description and travel.
Irwin, Aisling--Journeys.
Livingstone, David, 1813-1873--Journeys.
Wilson, Colum--Journeys.
Princeton subject headings:
Africa, Eastern--Description and travel.
Explorers--Biography.
Livingstone, David, 1813-1873--Travel--Africa, Eastern.