TY  - BOOK
AU  - Wybergh,W.
ED  - South Africa.
TI  - The building stones of the Union of South Africa
T2  - Geological Survey memoir
AV  - QE324 .A3 no. 29
PY  - 1932///
CY  - Pretoria
PB  - The Government Printer
KW  - Building stones
KW  - South Africa
N1  - At head of title: Union of South Africa. Department of Mines and Industries; With: A bibliography of South African geology for the years 1931 to 1935  (inclusive) : authors' index / by A. L. Hall -- The pegmatite area south of the Orange river in Namaqualand / by T. W. Gevers, F. C. Partridge, and G. K. Joubert. Pretoria : The Government Printer, 1937.  Bound together subsequent to publication; Includes bibliographical references and index
ER  -