Glass sands of an area near Pretoria
By: by L. Meintjes and H.J. Nel
Contributors: Nel, H. J.
Series: South Africa. Geological Survey. Geological series. Bulletin -- no. 17; Bulletin (Geological Survey (South Africa)) -- 17.
Publisher: Govt. Printer
Published: 1947
Place of publication: Pretoria
Language: eng
Number of pages: 30
Subjects: Glass Sand
Notes: Bibliography: p. 22.