The building stones of the Union of South Africa
By: by W. Wybergh ...
Series: South Africa. Geological Survey. Memoir; no. 29
Publisher: The Government Printer
Published: 1932
Place of publication: Pretoria
Language: eng
Number of pages: 244
Subjects: Building stones -- South Africa
Notes: "Publications of Geological surveys [Union of South Africa]": p. 239-244.
At head of title: Union of South Africa. Department of mines and industries.