Subject
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National security
1
Natural history
1
Netherlands Commerce History
1
Netherlands History
1
Oral tradition
1
Ore deposits
1
Petroglyphs
2
Rock paintings
1
San (African people)
1
Scholarships
1
Security, International
1
South Africa
1
South Africa Description and travel
1
South Africa Economic conditions
1
South Africa Foreign relations
2
South Africa History
2
South Africa Military policy
1
South Africa Politics and government
1
South Africa Race relations
2
South African literature (English) History and criticism
1
South African literature History and criticism
1
Soviet Union Foreign relations
1
Statesmen
1
Stone age
1
Storytelling
1
Tales
1
Traditional medicine
1
Trees
1
United States Foreign relations
4
United States History
1
United States Relations
1
Wildlife conservation
1
Women
1