1. From Flint to Soweto: reflections on the colonial origins of the apartheid city;Christopher;Area,1983
2. Spatial variations in the application of residential segregation in South African cities;Christopher;Geoforum,1989
3. Apartheid within apartheid: an assessment of official intra-black segregation on the Witwatersrand, South Africa;Christopher;The Professional Geographer,1989
4. The Atlas of Apartheid;Christopher,1994
5. Patterns of Non-White Population Distribution in Port Elizabeth with Special Reference to the Application of the Group Areas Act;Davies,1971