Não informado. (1961). Annals of the Cape Provincial Museums. Cape Provincial Museums.
Lua i Stíl Chicago (17ú heag.)Não informado. Annals of the Cape Provincial Museums. Grahamstown, Africa do Sul: Cape Provincial Museums, 1961.
Lua MLA (8ú heag.)Não informado. Annals of the Cape Provincial Museums. Cape Provincial Museums, 1961.
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