Geographic Subject
Africa
19
Algeria
6
Africa, North
5
Africa, Sub-Saharan
5
Egypt
4
Soviet Union
4
Afrique
3
Kenya
3
Sudan
3
Africa, West
2
Asia
2
Cambodia
2
Libya
2
Russia (Federation)
2
Saint Petersburg
2
South Africa
2
Africa, Central
1
Angola
1
Cameroon
1
Grande-Bretagne
1
Great Britain
1
Johnstown
1
Madagascar
1
Mali
1
Mongolia
1
Morocco
1
Mozambique
1
Namibia
1
Pennsylvania
1
Portugal
1
Tunisia
1
Zambia
1
Zimbabwe
1
Égypte
1