Big Ten Academic Alliance Geospatial Discovery Portal
Big Ten Academic Alliance Geoportal
Map of Southern Africa : showing the recruiting systems of the Native Recruiting Corporation and the Witwatersrand Native Labour Assocn.
- Stead, A. D.
- A.D. Stead, August, 1946." "Supplement to the Journal of the Chemical, Metallurgical and Mining Society of South Africa, October 1953." Some sites shown pictorially. Originally published by the Transvaal Chamber of Mines." Mineral industries--Africa, Southern--Employees--Maps
- Penn State Rare Maps
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