REFERENCES
- Burkitt , M. C. 1928 . South Africa's Past in Stone and Paint 102 Cambridge at the University Press .
- Goodwin , A. J. H. 1929 . “South African Neolithic Elements” . Annals of the South African Museum , xxvii : 277
- Hesse , C. H. 1926 . S.A. Journ. of Science , xxiii : 789
- 261 Goodwin, op. cit.
- 17 Burkitt, op. cit.
- Spencer , Sir Baldwin . 1922 . Guide to the Australian Ethnological Collection exhibited in the National Museum of Victoria, , 3rd ed. 76
- Péringuey , L. 1911 . Annals of the S.A. Museum , viii : 150 and Goodwin, op. cit.,p. 259