The coal resources of the Union of South Africa ...
Wybergh, Wilfrid John, 1868-
The coal resources of the Union of South Africa ... - Pretoria, The Government Printing and Stationery Office, 1922-28. - 3 v. illus., fold. plates (incl. maps, profiles) tables, diagrs. 25 cm. - South Africa. Geological Survey. Memoir no. 19, vol. I-III .
At head of title: Union of South Africa. Dept. of mines and industries.
v. 1. The coal fields of Wilbank, Springs and Heidelberg, and of the Orange Free State. 1922.--v. 2. The inland coal fields of Natal. 1925.--v. 3. The coal fields of the eastern and south-eastern Transvaal, Springbok flats, Waterberg, Zoutpansberg and of the Cape Province. 1928.
gs 22000386
Coal--South Africa.
QE324 / .A3
The coal resources of the Union of South Africa ... - Pretoria, The Government Printing and Stationery Office, 1922-28. - 3 v. illus., fold. plates (incl. maps, profiles) tables, diagrs. 25 cm. - South Africa. Geological Survey. Memoir no. 19, vol. I-III .
At head of title: Union of South Africa. Dept. of mines and industries.
v. 1. The coal fields of Wilbank, Springs and Heidelberg, and of the Orange Free State. 1922.--v. 2. The inland coal fields of Natal. 1925.--v. 3. The coal fields of the eastern and south-eastern Transvaal, Springbok flats, Waterberg, Zoutpansberg and of the Cape Province. 1928.
gs 22000386
Coal--South Africa.
QE324 / .A3